The circumference of a circle is 25.12cm. What is the area of the circle? Use 3.14

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asked Jan 15, 2018 117k views

1 Answer

Silverkid · Answer 1 · 2018-01-20T05:14:38+0000

c=2pir
area=pir^2

given
c=25.12
25.12=2pir
pi=3.14
25.12=2(3.14)r
25.12=6.28r
divide both sides by 6.25
4=r

sub into other
area=pir^2
area=pi4^2
area=16pi
area=16(3.14)
area=50.24

the area is 50.24 square cm

The circumference of a circle is 25.12cm. What is the area of the circle? Use 3.14

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