Question

A cylinder has a radius of 4 inches and a side surface area of 150.72 inches. What is the surface area of the cylinder?

Answer 1

Surf. A=251.25

Explanation:

Surface Area of a Cylinder: `=2pir^2+h(2pir)`
`h(2pir)` is given 150.72
`2pir^2=2pi(4)^2`
`=32pi`
`=100.53`
`100.53+150.72`
`=251.25`