If S=4πr² , find i) the value of S when r = 10

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asked Jun 16, 2022 145k views

1 vote

If S=4πr² , find
i) the value of S when r = 10

Mathematics
high-school

Cyril Godefroy asked

by Cyril Godefroy

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2 Answers

7 votes

Answer:

400pi, or 1256.637...

Explanation:

S = 4pir^2

S = 4pi(10^2)

S = 4pi(100)

S = 400pi

Nick Wyman answered Jun 17, 2022

by Nick Wyman

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2 votes

Answer:

S = 1256

Explanation:

S = 4
$\pi$
r^2

S = 4
$\pi$
(10)^2

S = 4
$\pi$
(100)

S =
4(314)

S = 1256

MD Ashik answered Jun 22, 2022

by MD Ashik

3.3k points

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