Question

Two identical solid hemispheres of equal base radius r cm are stuck together along their bases. The total surface area of the combination is 6πr².

पर्याय

• True

• False

Answer 1

This statement is False.

Explanation:

Curved surface area of a hemisphere = 2πr²

Here, two identical solid hemispheres of equal radius are stuck together.

So, base of both hemispheres is common.

∴ Total surface area of the combination

= 2πr² + 2πr² 

= 4πr²