The area of a circle is 28.26 in. What is the circumference of that circle?

Answer 1

18.84

the formula to find the area of circle is: #A=pi*r^2# the area is already stated so, #28.26=pi*r^2#

#28.26/pi=r^2# #8.995437=r^2#

#sqrt(8.995437)=r#

#2.999239=r#

we have found that the radius is 2.999239 and the formula for circumference of a circle is: #pi*d# #2.999239*2=5.99848# (multiply by 2 to get the diameter)

#5.99848*pi=18.84478#

so the answer is 18.84

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Answer 2

Caroline Aucoin

To find the circumference of the circle, you can use the formula:

Circumference = 2 * π * radius

First, find the radius using the formula for the area of a circle:

Area = π * radius^2

Given that the area is 28.26 square inches, solve for the radius:

28.26 = π * radius^2

radius^2 = 28.26 / π

radius ≈ √(28.26 / π)

Once you have the radius, plug it into the circumference formula:

Circumference ≈ 2 * π * radius

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Answer from HIX Tutor

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