Question

How to solve a surface area and volume of a 8 diameter and height is 9?

Answer 1

Assuming this is a cylinder, surface area (using the formula) = 2πrh+2π(r^2)
r = diameter/2 = 4
h = height = 9
surface area becomes
2π*4*9 + 2π(4^2)
= 326.73