Question

A right cylinder has a radius of 4 and height of 11 . What is it’s surface area?

Answer 1

376.8

Explanation:

formula for SA=2×π×r×h + 2×π×r²

r = 4

r²= 16

h = 11

π= 3.14..

substitute:

SA= (2 × 3.14 × 4 × 11) + (2× 3.14 × 16)

276.32 + 100.48 = 376.8