Question

A metal container is in the form of a cylinder
surmounted by a hemisphere of the same radius.
The internal height of the cylinder is 7 m and the
internal radius of the cylinder is 3.5 m. Calculate
the total surface area of the container.
​

Answer 1

Answer:

Radius of the cylinder = 3.5 m

Height = 7 m

(i) Total surface area of container excluding the base = Curved surface area of the cylinder + area of hemisphere