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4 votes
Find the circumference of this circle. Round to the nearest tenth.

Area= 63.6 inches squared

User Negi Yogi
by
8.1k points

2 Answers

2 votes

Answer:

C = 28.048

Explanation:

Circumference = 2pi(r)

Area = pi(r)^2

62.6 = pi(r)^2

r^2 = 62.6/pi

r^2 = 19.926

r = 4.464

Therefore, circumference = 2pi(4.464)

= 28.048

User Suresh Sharma
by
8.2k points
1 vote

Answer: 28.3 inches

Explanation:

In order to find the circumference of the circle , we need to find the radius of the circle from the area given.

The formula for calculating area of circle is given by :

A =
\pi r^(2) , that is

63.6 =
3.14 x
r^(2)


r^(2) = 63.6 / 3.14


r^(2) = 20.25477707


r = 4.5

Therefore : to calculate the circumference of the circle , we will use the formula for calculating the circumference of a circle , which is

C =
2\pi r

C =
2(3.14)(4.5)

C = 28.26

C≈ 28.3 inches

User Ghoppe
by
8.1k points

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