The area of a circle is 100(Pi), what's its diameter?

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asked Jun 7, 2017 89.0k views

1 vote

The area of a circle is 100(Pi), what's its diameter?

Mathematics
high-school

Jamjam asked

by Jamjam

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2 Answers

5 votes

20 I believe, if the area is equal to the radius squared times Pi then the radius is 10 (found by the square root of 100) and the diameter is two times the radius

Zloctb answered Jun 8, 2017

by Zloctb

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2 votes

S=
$\pi r^(2)$
100 pi =
$\pi r^(2)$
100 = r 2
r = 10 cm
d= 2*10=20 cm

Ashish Rajan answered Jun 14, 2017

by Ashish Rajan

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