Question

Find the surface area of a hemisphere with a radius 10m. Leave your answer in terms of pi.(1 point)
Responses

200π m2

200 pi m squared

500π m2
500 pi m squared

400π m2
400 pi m squared

300π m2

Answer 1

Surface area (curved) = 1/2·(4πr^2) = 2πr^2 = 2π(10^2) = 200π m^2.
Including the flat base: total = 200π + πr^2 = 200π + 100π = 300π m^2.

So if the base is included, answer = 300π m^2 (curved surface only = 200π m^2).