Question

Find the circumference of this circle. Round to the nearest tenth. Area= 63.6 inches squared

Answer 1

Answer: 28.3 inches

Step-by-step 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

Answer 2

Answer:

C = 28.048

Step-by-step 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