Question

Hi :), im really struggling with this. Just wanted to know if anyone can explain step by step for me please?

Answer 1

314 m²

Explanation:

the surface area of a sphere (As) = 4×pi×r²

our radius r (half the diameter) here is 5m.

=>

As = 4×pi×5² = 4×3.14×25 = 100×3.14 = 314 m²