MATH SOLVE

3 months ago

Q:
# What is the surface area of a sphere with a radius of 9 units?

Accepted Solution

A:

Answer:see explanationStep-by-step explanation:The surface area (A) of a sphere is calculated asA = 4πr² ← r is the radius, here r = 9, thusA = 4π × 9² = 4π × 81 = 324π ≈ 1017.9 units²