Question

Calculate the area of a circle with a radius of 2 cm and a circle with a radius of 4 cm. Leave your answers in terms of pi.

Answer 1

See below in bold.

Explanation:

Area of a circle with radius 2 cm = πr^2 = π * 2^2 = 4π cm^2.

Area of a circle with radius 4 cm = πr^2 = π * 4^2 = 16π cm^2.