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frutty [35]
3 years ago
10

I need help with #20

Mathematics
3 answers:
lora16 [44]3 years ago
8 0

Hey there!

Formula given :

A = πr²

Solve for r

A / π = r²

r = √( A / π )

Hope it helps!

g100num [7]3 years ago
5 0
Hope this helps.
i have solved the equation to help you get a better of how to demonstrate this in the future.

Darina [25.2K]3 years ago
3 0
A=pi r^2
sqrt(A)=pi r
sqrt(A)/pi=r

Answer:sqrt(A)/pi=r

(sqrt(A) means the square root of A)
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