Geometry world problem Help!

Question

When using the formula S=2πr(r+h) , Shelly claims that this is the formula for the volume since the r, r, and h suggest three dimensions. How should you respond?

Answer 1

for a cylinder, V =height x Area of one end = hA= pi(r^2)h Not 2pir(r+h)

S generally = Surface Area = total area of the sides

for a cylinder S = hC +top&bottom areas = 2pirh+ 2pir^2 = 2pir(r+h)