Find the surface area of a hemisphere with a radius of 10m. Leave your answer in the terms of pi.

A. 500π m^2

B. 300π m^2

C. 400π m^2

D. 200π m^2

The formula for the surface area of a hemisphere is given by 2πr^2, where r is the radius.

In this case, the radius is 10m. Plugging this value into the formula, we get:

Surface area = 2π(10^2)
= 2π(100)
= 200π m^2

Therefore, the correct answer is D. 200π m^2.