Question

what is the surface area of a cylinder with a diameter of 2cm and a height of 9cm?

Answer 1

surface area for a cylinder = 2*pi*r*h+2*pi*r^2

 so 2*(3.14)*1*9 = 56.52

2*(3.14) *1^2 = 6.28

56.52+6.28 = 62.8 cubic cm