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3 years ago

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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