Question

A cylinder has a radius of 4 centimeters and a height of 40 centimeters

Answer 1

Volume:

`V = b * h \\ V=( \pi r^(2) )*h\\V=(\pi4^(2))*40\\V=640cm^(3)`

Surface Area:
SA = base + base + side
SA =
`2(\pi r^(2))+(`Circumference
`*h`
SA =
`2(\pi r^(2))+(2\pi r)*h`

`SA=2(\pi(4^(2)))+(2\pi (4))*40\\ SA=32\pi + 8\pi*40\\ SA=32\pi+320\pi \\ SA=352\pi=1005.309cm^(2)`