Question

What is the surface area formula for a cylinder?(1 point)
Responses

SA = π
rl + π
r2
SA = pirl + pir 2

SA = 2π
rh + 2π
r2
SA = 2pirh + 2pir 2

SA = 4π
r2
SA = 4pir 2

SA = π
r2h

1 answer

The correct formula for the surface area (SA) of a cylinder is:

SA = 2πrh + 2πr²

This accounts for the lateral surface area (2πrh) and the area of the two circular bases (2πr²).