Question

What is the surface area of this right circular cylinder?

10 cm and 2cm

Question 6 options:

48 text π cm^2


28 text π cm^2


108 text π cm^2


88 text π cm^2

Answer 1

The surface area of a circular cylinder formula is 2πrh + 2πr²

SA = 2π(2)(10) + 2π(2)²
SA = 40π + 8π
SA = 48π cm²


The radius is 2.

Hope this helps :)

Answer 2

Height 10 radius 2
Cylinder Surface Area = (2 • π • r²) + (2 • π • r • height)
(2*PI*r^2) surface area of the ends
(2*PI*r*height) - lateral surface
Area of ends = 25.133
Lateral Surface = 125.66
Total Area = 150.80