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Svetlanka [38]
3 years ago
11

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

Mathematics
2 answers:
kolbaska11 [484]3 years ago
8 0

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

Virty [35]3 years ago
3 0

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

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