Question

Question #d5882

Answer 1

`r=A/(2pih)`
Divide both sides of the equation by `2pih`

that is

Explanation:

From the given formula `A=2pirh`
`A/(2pih)=(2pirh)/(2pih)`

`A/(2pih)=(cancel2cancelpircancelh)/(cancel2cancelpicancelh)`

and
`r=A/(2pih)`

God bless....I hope the explanation is useful !