Find the perimeter and the area of the figure. Round answers to the nearest tenth.
Composite shape formed by a rectangle and two semicircles. Each semicircle has a diameter of 15 feet and is aligned with the length of the rectangle. The rectangle has a width of 4 feet.
perimeter: about
ft
area: about
ft²
The answer of the given question based on the circle and rectangle is , the perimeter of the shape is approximately 83.8 feet, and its area is approximately 148.4 feet².
What is Perimeter?Perimeter is a measurement of the distance around the edge of a two-dimensional shape. It is the sum of the lengths of all the sides of the shape. The perimeter is often measured in units of length, such as centimeters, meters, or feet.
To find the perimeter and area of the composite shape formed by a rectangle and two semicircles, we can break it down into its individual components and then add them up.
First, let's find the perimeter. The shape consists of two semicircles, each with a diameter of 15 feet, and a rectangle with a width of 4 feet and a length equal to the diameter of the semicircles, which is 15 feet. The perimeter can be calculated as:
Perimeter = 2 × (semicircle circumference) + rectangle perimeter
The circumference of circle is by the formula 2πr, where r is the radius. Since each semicircle has a diameter of 15 feet, its radius is 7.5 feet. Therefore, the circumference of each semicircle is:
C = 2πr = 2π(7.5) = 15π feet
The perimeter of the rectangle is simply the sum of its four sides, which is:
P = 2(length + width) = 2(15 + 4) = 38 feet
Putting it all together, we have:
Perimeter = 2 × 15π + 38 ≈ 83.8 feet
Now let's find the area. The shape consists of two semicircles, each with a diameter of 15 feet, and a rectangle with a width of 4 feet and a length equal to the diameter of the semicircles, which is 15 feet. The area can be calculated as:
Area = (semicircle area) + rectangle area
The area of a circle is given by the formula πr². Since each semicircle has a diameter of 15 feet, its radius is 7.5 feet. Therefore, the area of each semicircle is:
A = (1/2)πr² = (1/2)π(7.5)² = 44.18 feet²
The area of the rectangle is simply its length multiplied by its width, which is:
A = length × width = 15 × 4 = 60 feet²
Putting it all together, we have:
Area = 2 × 44.18 + 60 = 148.4feet²
Therefore, the perimeter of the shape is approximately 83.8 feet, and its area is approximately 148.4 feet².
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Calculate the area of the shaded region
4 ft 2 ft
8 ft
3 1/2 ft
5 ft.
Answer:
please let me know what is the name of the shape. Thank you
Solve the systems of equations shown below.
2x- 6y = -12
X + 2y = 14
Solve for x. I attached the image. Pls help :(
Based on the intersecting chords, the calculated value of x on the circle is 11
Calculating the value of x in the circleThe given shape in the question is a circle
As a general rule, a circle is a shape with all points on its boundary equidistant from a central point called the center
In this case, the center is point W
The sum of angles on the circumference is 360
So, we have
17x - 20 + 75 + 2 * 59 = 360
Evaluating the like terms, we have
17x = 187
Divide by 17
x = 11
Hence. the value of x is 11
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y= 3 ( x − 1 ) ^2 − 8 in standared form
y = 3(x-1)^2 - 8
y = 3(x^2 - 2x + 1) - 8 [Using the identity (a-b)^2 = a^2 - 2ab + b^2]
y = 3x^2 - 6x + 3 - 8 [Distributing the 3]
y = 3x^2 - 6x - 5 [Simplifying]
*IG:whis.sama_ent
Answer:
y=3x^(2)-6x-5
[tex]y=3x^2 -6x-5[/tex]
hope this helps ;)
M5|L11 Kate wants to buy grass seed to cover her whole lawn, except for the pool. The pool is 7 - m by 2 3 m. Find the area the grass seed needs to cover. LO What's the Area? Solve on paper. Then check your work on Zearn. 4) 5 11 3 4 pool Moro ch
The area the grass seed needs to cover is 7,425 square meters.
What is the total area of Marcos's lawn excluding the pool?To find the total area of the lawn excluding the pool, we first need to calculate the area of the pool. Using the formula for the area of a rectangle, we multiply the length and width of the pool together to get:
= 7.5 m x 3.25 m
= 24.375 square meters
Next, we can find the total area of the lawn by subtracting the area of the pool from the total area of the rectangle formed by the lawn:
= 50 m x 150 m
= 7,500 square meters
So, the area the grass seed needs to cover is:
= 7,500 square meters - 24.375 square meters
= 7,425 square meters.
Full question" Marcos wants to buy grass seed to cover his whole lawn, except for the pool. The pool is 7 1/2 m by 3 1/4 m. Find the area the grass seed needs to cover. The dimensions of the lawn are 50 m x 150 m.
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r=7/8cosθ+2sinθ
Which of the following gives the Cartesian form of the equation above?
Select the correct answer below:
x2+y2=7/10
y=−1/4x+7/8
y=−4x+7/2
8x2+2y2=7
Answer: 8x^2 + 2y^2 = 7
Step-by-step explanation:
The equation R = 7/8cosθ + 2sinθ can be rewritten in terms of x and y using the conversions x = Rcosθ and y = Rsinθ.
Substituting R = 7/8cosθ + 2sinθ into these equations, we get:
x = (7/8)cosθ cosθ + 2sinθ cosθ
y = (7/8)cosθ sinθ + 2sinθ sinθ
Simplifying these expressions using trigonometric identities, we get:
x = (7/8)cos^2θ + (4/8)sin2θ
y = (7/8)sinθ cosθ + (4/8)sin2θ
Multiplying both sides of the x equation by 8/7 and simplifying, we obtain:
8x^2 + 2y^2 = 7cos^2θ + 8sin^2θ
Using the identity cos^2θ + sin^2θ = 1, we get:
8x^2 + 2y^2 = 7(1)
Therefore, the Cartesian form of the equation is 8x^2 + 2y^2 = 7.
Answer:y=−4x+7/2
Step-by-step explanation:
Multiply each side of the equation by 8cosθ+2sinθ to get 8rcosθ+2rsinθ=7. Using the relationships x=rcosθ and y=rsinθ, the equation becomes 8x+2y=7. Solving this equation for y shows that y=−4x+7/2.
PLS HELP I WILL RATE!!
Consider the graph of the function f(x)= 1n x Which is a feature of function g if g(x)=-f(x-4)
A feature of function gif g(x) = f(x-4) is D. horizontal asymptote of y = 4
What is the asymptote aboutA horizontal asymptote is a straight line on a graph that a function approaches but never touches as the independent variable (usually denoted as x) increases or decreases without bound. In other words, the function gets closer and closer to the horizontal line as x becomes very large or very small, but it never actually touches or crosses it.
A function can have at most two horizontal asymptotes - one on the left side of the graph and one on the right side. The horizontal asymptotes of a function are determined by the highest degree of the polynomial in the numerator and the denominator of the function.
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A company that manufactures batteries used in electric cars is reporting that their newest model of battery has a mean
lifetime, μ, of 12 years. To test the company's claim, a competitor has selected 35 of these batteries at random. The mean
lifetime of the sample is 12.5 years. Suppose the population standard deviation of these lifetimes is known to be 3.5 years.
Is there enough evidence to reject the claim that the mean lifetime of the newest model is 12 years? Perform a hypothesis
test, using the 0.10 level of significance.
The conclusion of the given hypothesis is: we FAIL to reject the null hypothesis and conclude that there is not enough evidence to reject the claim that the mean lifetime of the newest model is 12 years
How to carry out Hypothesis Testing?The parameters given are:
Population mean: μ = 12
Sample mean: x' = 12.5
Population standard deviation; σ = 3.5
Sample size: n = 35
Let's define the hypotheses:
Null Hypothesis: H₀: μ = 12
Alternative Hypothesis: Hₐ: μ ≠ 12
Let us find the z-score from the formula:
z = (x' - μ)/(σ/√n)
z = (12.5 - 12)/(3.5/√35)
z = 0.845
The p-value from online p-value from z-score calculator using two tailed hypothesis and a significance level of 0.1 gives:
p-value = 0.398
The p-value is greater than the significance value and we FAIL to reject the null hypothesis and conclude that there is not enough evidence to reject the claim that the mean lifetime of the newest model is 12 years
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Twice the difference of a number and three is the sum of that number and four
Answer:
Step-by-step explanation:
Answer:
-20
Step-by-step explanation:
We can set up an equations with the conditions we are given. Let's use x for the missing number.
2(x-4)=3(x+4)
2x-8=3x+12
-20=xWe can set up an equations with the conditions we are given. Let's use x for the missing number.
2(x-4)=3(x+4)
2x-8=3x+12
-20=x
how to find the area for a rectangle?
Answer:
Area of a rectangle = Length x Width
Step-by-step explanation:
Length = 25 cm
Width = 8 cm
25 x 8 = 200
So the area of a rectangle = 60 cm^2
FCATOR EACH POLYNOMIAL. LOOK FOR A GCF FIRST.
3x²-3y²
Answer:
3 (x + y) (x - y)
Step-by-step explanation:
3x²-3y²
GCF is 3
3(x² - y²)
Since both terms are perfect squares, factor using the difference of squares formula, a² − b² = (a+b) (a−b) where a = x and b = y.
So, the answer is 3 (x + y) (x - y)
I need help asap pls!!!!
Using the functions, we can find the graphs for each function as follows:
Graph 3 is: g (x) = [tex]4^{x}[/tex]
Graph 4 is: h (x) = [tex]-4^{x}[/tex]
Graph 2 is: f (x) = [tex]-(\frac{1}{4})^{x}[/tex]
Graph 1 is: k (x) = [tex](\frac{1}{4})^{x}[/tex]
Define functions?A function is a procedure or a relation that links each element of a non-empty set A, at least one element of another non-empty set B, to another element of the first non-empty set A. In mathematics, a relation f between two sets, A and B, is referred to as the function's domain and co-domain. For all values of a and b, f = (a,b)|
Based on elements like the domain and range of a function, as well as the function expression, the function y = f(x) is categorised into many categories of functions. The domain x value is referred to as input for the functions. The domain value can be a fraction, decimal, angle, integer, or decimal. The range is also represented by the y value or the f(x) value.
Graph 3 is: g (x) = [tex]4^{x}[/tex]
Graph 4 is: h (x) = [tex]-4^{x}[/tex]
Graph 2 is: f (x) = [tex]-(\frac{1}{4})^{x}[/tex]
Graph 1 is: k (x) = [tex](\frac{1}{4})^{x}[/tex]
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Which of the following describes the graph shown?
The piecewise function graphed is defined as follows:
C)
y = 1/2x + 2, x ≤ -1.y = 1/2x² - 1, x > -1.What is a piecewise function?A piecewise function is a function that is defined by multiple equations, each of which applies to a specific interval or set of inputs. The equations are pieced together to form a single function that describes the behavior of the function over its entire domain.
The intervals for this problem are given as follows:
x ≤ -1.x > 1.For the first interval, we have a linear function with a slope of 1/2 and an intercept of 2, hence:
y = 1/2x + 2, x ≤ -1.
For the second interval, we have a quadratic function with a vertex of -1, hence:
y = 1/2x² - 1, x > -1.
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4. Which of the following angles is vertical to angle /DEB?
A
C
109°
E
D
B
The angle that is vertical to angle DEB is A.
What is a vertical angle?A vertical angle is an angle formed by two intersecting lines or planes that are perpendicular to each other. Specifically, it is the angle between two straight lines or planes that intersect each other and are perpendicular to the horizontal plane.
The measure of a vertical angle is always the same as the measure of the other vertical angle formed by the same two intersecting lines or planes. This is because vertical angles are always congruent, meaning they have the same size and shape. Vertical angles are commonly used in geometry and trigonometry to solve problems involving angles, lines, and plane.
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There are 12 cats and 7 dogs at the humane society A. In how many ways can the first costumer randomly choose a cat?
Answer: C
Step-by-step explanation: C
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Using the following set of data, calculate the lower quartile, the upper quartile, and the interquartile range.
20, 22, 25, 28, 29, 30, 32, 33, 34
Be sure to show your work for finding:
the lower quartile
the upper quartile
the interquartile range
Answer:
To find the lower and upper quartiles and the interquartile range, we first need to order the data from smallest to largest:
20, 22, 25, 28, 29, 30, 32, 33, 34
Next, we find the median (middle value) of the entire dataset:
Median = (29 + 30) / 2 = 29.5
This median value divides the data into two halves. We then find the median of the lower half of the data, which includes all values less than or equal to 29.5:
Lower half: 20, 22, 25, 28, 29
Median of lower half = (25 + 28) / 2 = 26.5
This value, 26.5, is the lower quartile (Q1).
Similarly, we find the median of the upper half of the data, which includes all values greater than or equal to 29.5:
Upper half: 30, 32, 33, 34
Median of upper half = (32 + 33) / 2 = 32.5
This value, 32.5, is the upper quartile (Q3).
Finally, we can calculate the interquartile range (IQR) as the difference between the upper and lower quartiles:
IQR = Q3 - Q1 = 32.5 - 26.5 = 6
Therefore, the lower quartile is 26.5, the upper quartile is 32.5, and the interquartile range is 6.
r=−5sinθ+4θ
Which of the following types of symmetry is demonstrated in the equation above based on the three symmetry tests for polar equations?
θ=π/2
polar axis
pole
none
Answer: Correct answer is pie/2 or A
Step-by-step explanation:
r = -5sinθ + 4θ has symmetry with respect to the line θ = π/2.
To demonstrate this, we can apply the third symmetry test for polar equations:
Symmetry with respect to the line θ = π/2: Replace θ by π - θ and see if the equation remains the same. If it does, the equation has symmetry with respect to the line θ = π/2.
r = -5sin(π/2 - θ) + 4(π/2 - θ) = 5cosθ + 2π - 4θ
r = 5cosθ + 2π - 4θ is the same as the original equation, so there is symmetry with respect to the line θ = π/2.
Therefore, the correct answer is θ = π/2.
If Hazel buys 0.9 pounds of coffee ice cream and 3.4 pounds of cherry ice cream, how much will she spend?
Answer:
what brand
Step-by-step explanation:
Help please!!!!!!
!!!!!
Answer: GL = [tex]\sqrt{61}[/tex]
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem. GL is the hypotenuse.
Given:
a² + b² = c²
Substitue:
AL² + AG = GL²
Find side lengths (count via the coordinate plane given):
6² + 5² = GL²
Square:
36 + 25 = GL²
Add:
61 = GL²
Square root both sides:
[tex]\sqrt{61}[/tex] = GL
Jared also wants to make fruit punch. He has 8 pints each of orange juice, pineapple juice, and cranberry juice. Which of the following is true? A. He does not have enough of each type of juice to make 1 recipe. B. He has enough of each type of juice to make 1 recipe. C. He has enough of each type of juice to make 2 recipes. D. He has enough of each type of juice to make 3 recipes.
We can see here that if Jared wants to make fruit punch and he has 8 pints each of orange juice, pineapple juice, and cranberry juice, we can deduce here that the following is true: B. He has enough of each type of juice to make 1 recipe.
What is a fruit punch?Fruit punch is a non-alcoholic drink that is created by combining different fruit juices. It is a well-liked beverage for parties and other social occasions and is normally served chilled.
Fruit punch's exact ingredients might vary, but typically it consists of a mixture of juices including orange, pineapple, cranberry, and/or grapefruit that have been combined with sugar, water, or carbonated water.
We can see here that in order to make 1 recipe of fruit punch, we need 2 pints of orange juice, 2 pints of pineapple juice, and 1 pint of cranberry juice.
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Find the interquartile range of the given data set.
8.4, 7.1, 6.3, 6.8, 9.2, 7.3, 8.8, 7.9, 5.3, 8.2
Thus, the interquartile range of the given data set. are -
1st quartile (Q1) = 6.8 ; 2nd quartile (Q2) = 7.6 and 3rd quartile (Q3) = 8.4 .interquartile range = 1.60.
Explain about the interquartile range:The interquartile range in descriptive statistics reveals the spread of your distribution's middle half.
Each distribution that is sorted from low to high is divided into four equal portions using quartiles. The third and second quartiles, or the centre half of your data set, are contained in the interquartile range (IQR).
The interquartile range provides the range of a middle half of a data set, whereas the range provides the spread of the entire data set.
Given data set:
8.4, 7.1, 6.3, 6.8, 9.2, 7.3, 8.8, 7.9, 5.3, 8.2
arrange the data set in ascending order:
5.3, 6.3, 6.8, 7.1, 7.3, 7.9, 8.2, 8.4, 8.8, 9.2
Total term = 10 (even)
2nd quartile (Q2) 50% quartile - (5th + 6th) /2 = (7.3 + 7.9) /2 = 7.6
Now:
1st quartile (Q1) 25% quartile - 3rd term = 6.8
3rd quartile (Q3) 75% - 8th term = 8.4
Thus, the interquartile range of the given data set. are -
1st quartile (Q1) = 6.8 ; 2nd quartile (Q2) = 7.6 and 3rd quartile (Q3) = 8.4 .
interquartile range = maximum - minimum
interquartile range = 8.4 - 6.8 = 1.60.
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What's the answer to this???????
The x-intercept represents:
"The number of hours the taxi was driven before running out of fuel"
What does the x-intercept represent?In standard notation, the variable x is the independent variable in the horizontal axis, here we can see that in the horizontal axis we are measuring the time (in hours) that the taxi was driving.
Then the x-intercept (the time when y = 0) is the number of hours until the fuel is down to zero, then the correct option is B i guess, but it should be worded as:
"The number of hours the taxi was driven before running out of fuel"
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what is the value of x if a shape has sides messuring 131, 122, 125, 148, 107, 126
The value of x unknown for the given shape with given measurements 131°, 122°, 125°, 148°, 107°, 126° is equal to 141°.
The attached figure is seven sided polygon.
Seven sided polygon is called Heptagon.
Sum of all the interior angles of seven sided polygon = 900 degrees
Measurements are,
131°, 122°, 125°, 148°, 107°, 126°
Measurement of seventh angle is unknown.
let the measure of seventh angle be x°
⇒ x° + 131° + 122° + 125° + 148° + 107° + 126° = 900°
⇒ x° + 759° = 900°
⇒ x° = 900° - 759°
⇒ x° = 141°
Therefore, the value of x for the given shape with measurements is equal to 141°.
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The above question is incomplete , the complete question is:
what is the value of x if a shape has sides measuring 131, 122, 125, 148, 107, 126.
Attached figure.
baseball team 747 for the season this was 9 times the number the number
Hence ,the basketball team scored 83 points in the first game.
What is the basketball?Basketball is a team sport in which two teams, most commonly of five players each, opposing one another on a rectangular court, compete with the primary objective of shooting a basketball through the defender's hoop, while preventing the opposing team from shooting through their own hoop.
What is the team ?A team is a group of individuals (human or non-human) working together to achieve their goal.As defined by Professor Leigh Thompson of the Kellogg School of Management, team is a group of people who are interdependent with respect to information, resources, knowledge and skills and who seek to combine their efforts to achieve a common goal
Let x be the number of points scored in the first game.
According to the question,
747 = 9 x
now 9 divided by both sides,
x = [tex]\frac{747}{9}[/tex]
than we get:
x = 83
Therefore, the basketball team scored 83 points in the first game.
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Complete question is:
A basketball scored 747 points for the season.This was 9 times the number of points they scored in the first game.How many points were scored in the first game.
Given the function f(x) = x, what is the effect of f(x) - 8?
A. The new line is parallel to the original
B. The new line has a smaller rate of change
C. The x intercept decreases
C. The y intercept increases
If the function f(x) = x, the effect of f(x) - 8 is: is (D) The y intercept decreases.
What is the effect of f(x) - 8?The function f(x) = x is a linear function with a slope of 1, which means that for every increase of 1 in the x-value, the y-value also increases by 1.
If we subtract 8 from the function, we get:
f(x) - 8 = x - 8
This is still a linear function with a slope of 1, but it has been shifted downwards by 8 units.
Therefore, the effect of f(x) - 8 is that the y-intercept decreases by 8 (since the y-intercept of f(x) is 0 and the y-intercept of f(x) - 8 is -8), while the slope remains the same.
So the correct answer is (D) The y intercept decreases.
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Aaron writes an algebraic expression to represent the product of 14 and the difference of 18 and 3x. what are the factors
Aaron's algebraic expression is:
14 * (18 - 3x)
What is algebraic expression?an algebraic expression is an expression built up from constant algebraic numbers, variables, and the addition, subtraction, multiplication, division and exponentiation by an exponent that is a rational number.
This expression represents the product of 14 and the difference of 18 and 3x. The factors of this expression are:
14: This is a constant factor that multiplies the difference of 18 and 3x.
(18 - 3x): This is the distinction of 18 and 3x, which is being duplicated by 14. It is a two-term binomial expression: 18 and -3x. The first term, which has a coefficient of -3, is a variable, while the second term, which has a coefficient of -3, is a constant.
To work on the articulation, we can utilize the distributive property of augmentation to get:
14 * (18 - 3x) = 14*18 - 14*3x = 252 - 42x
In this worked on structure, the elements are as yet 14 and (18 - 3x). However, additional factors of the simplified expression, such as 2 and 21, which are factors of 42 (the coefficient of x), can also be identified.
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EASY ALGEBRA 2!! THANKS FOR HELPING
a. The exponential model representing the situation is S (t) = 6.26 * [tex]1.04^{t}[/tex]. The number of subscribers in 2016 is 7.32 billion.
b. In the year 2015, the number of cell phone subscribers were about 7 billion.
The solution has been obtained by using the arithmetic operations.
What are arithmetic operations?
Any real number may be explained using the four basic operations, also referred to as "arithmetic operations." In mathematics, operations like division, multiplication, addition, and subtraction come before operations like quotient, product, sum, and difference.
a. Since, during next 5 years there is increase by 4% so, we get the base using the addition operation as:
1 + 4% = 1.04
The exponential model comes out to be
y = 6.26 * [tex]1.04^{t}[/tex]
Now, the number of cell phone subscribers in 2016 is:
y = 6.26 * [tex]1.04^{4}[/tex] (This is because t = 4)
y = 7.32 billion
b. We are given y = 7 billion.
So, we get
⇒ 7 = 6.26 * [tex]1.04^{t}[/tex]
⇒ 1.12 = [tex]1.04^{t}[/tex] (Using the division operation)
⇒ t = 2.8
So, in 2015, the number of cell phone subscribers were about 7 billion.
Hence, the required solutions have been obtained.
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Find the perimeter and area of each
How to solve this problem?
Answer:
Step-by-step explanation:
Perimeter: 34 yd
Area: 37 yd²
Find the circumference of the circle. Round to the nearest tenth.
A. 148.4 m
B. 169.6 m
C. 84.8 m
D. 54.0 m
Answer:
C. 84.8 m
Step-by-step explanation:
Circumference of circle = D x 3.14
D = 27 m
Let's solve
27 x 3.14 = 84.78 m
So, the circumference of the circle is C. 84.8 m
Answer:
Option C) 84.8 is the correct answer.
Step-by-step explanation:
Here we have given that the diameter of circle is 27 m and we have to find the circumference of circle. The formula to find circumference of circle is :
[tex]\dashrightarrow\sf{C = \pi d}[/tex]
Where :
C = circumference π = 3.14 d = diameterThus, finding the circumference of circle by substituting the given values in the formula :
[tex]\dashrightarrow\sf{C = \pi d}[/tex]
[tex]\dashrightarrow\sf{C = \pi \times d}[/tex]
[tex]\dashrightarrow\sf{C = 3.14 \times 27}[/tex]
[tex]\dashrightarrow\sf{C = 84.78 \: m}[/tex]
[tex]\dashrightarrow\sf{C \approx 84.8\: m}[/tex]
Hence, the circumference of circle is 84.8 m.
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