Question

The total surface area of hemispherical solid having 7cm radius is………………..

A) 462cm2

B) 294 cm2

C) 588cm2

D) 154cm2​

Answer 1

Answer:

In formula π is a constant and its value is 227 or 3.14. Hence the surface area of the given sphere is 616cm2.

Answer 2

Answer:

Find the curved surface area and the total surface area of a hemisphere of radius 7 cm. Here, radius of the hemisphere = 7 cm. Hence, the curved surface area of the hemisphere is 308 cm2 and the total surface area is 462 cm2