Why is the surface area of a hemisphere with a radius of 10m with the answer in terms of pi 300π m^2 and not 200π m^2?

Answer 1

The surface area of a hemisphere can be calculated using the formula:

Surface Area = 2πr²

where r is the radius of the hemisphere.

When the radius is given as 10m,

Surface Area = 2π(10)² = 2π(100) = 200π m²

Therefore, the correct answer would be 200π m², not 300π m².