Question

What is the area of a circle in terms of circumference?

Answer 1

The circumference can be written as `P=2pir`

Explanation:

So the radius is `r=P/(2pi)`

And since the area is `A=pir^2`

We can rewrite this as:

`A=pi(P/(2pi))^2=cancelpi*(P^2/(4*pi*cancelpi))=P^2/(4pi)`