A circular pond has a radius of 2x. Write a simplified expression for the area of the pond in terms of \pi

Question

A circular pond has a radius of 2x. Write a simplified expression for the area of the pond in terms of
`\pi`

Answer 1

The formula for the area of a circle is

... A = π·r²

Substituting your value for the radius, you have

... A = π·(2x)²

... A = 4π·x²