Question

Find the area of a semi-circle with radius, r = 2cm.

Give your answer as an expression in terms of π.

Answer 1

The answer is 2pi

Explanation:

To find the area of a cirlce, use the equation ( pi * r^2 ) so for a semi circle, which is half, simply divide that by 2. Plug in 2 for radius and you get 4pi/2 which simplifies to 2pi.