Question

Hello need help with surface area

Answer 1

I need to find out the surface area of a cylinder with a height of 15 cm topped with a hemisphere with the radius of 4 cm.

Answer 2

My working out seems to be wrong:
SA = (2pi x r^2 + 2pi x r x h) + (2pi x r^2)
= (2pi x 4^2 + 2pi x 4 x 15) + (2pi + 4^2)
= (2pi x 16 + 2pi x 60) + (2pi x 16)
= 32pi + 120pi + 32pi