Question

A=4pir^2 solve for r^2​

Answer 1

`(A)/(4 \pi) =r^2`

Explanation:

To solve for a variable or piece of an expression, use inverse operations. Since
`4 \pi` is being multiplied to
`r^2`, then you will use the inverse operation by dividing both sides by
`4 \pi`.

`A = 4 \pi r^2\\\\(A)/(4 \pi)= (4 \pi r^2)/(4 \pi) \\\\(A)/(4 \pi) =r^2`