Question

Reggie is painting pieces for a display he is creating. One of the pieces is a cylinder with a height of 4 centimeters and a radius of 5 centimeters. What is the surface area of the cylinder?

A)20π cm²
B)45π cm²
C)90π cm²
D)140π cm²

Answer 1

Formula for surface area of a cylinder 2(pi)rh+2r^2
Let’s just remove the pi
2(5)(4)+2(5)^2
40+50
90