kayleesjr kayleesjr

10-05-2019
Mathematics

contestada

Find the area of a circle with a circumference of 31.42 centimeters.

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djjpisawesome djjpisawesome

10-05-2019

Answer:

A≈78.56cm²

Hope this helps you out!

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jennasysmcmeniman jennasysmcmeniman

10-05-2019

c = 2(pi)r = 31.42cm

2(3.14)r = 31.42cm

6.28r = 31.42cm

r = 31.42cm / 6.28

r = 5cm

A = (pi)r^2

= (3.14) (5)^2

5x5 = 25cm

25x3.14= 78.5cm

the area equals 78.5cm

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