1.

What is the volume (in cm3) of a hemisphere which have a diameter of 21 cm? 1. 2500 cm32. 2426 cm33. 2425.05 cm34. 2425.5 cm3

Answer» Correct Answer - Option 4 : 2425.5 cm3

Given:

The diameter of a hemisphere is 21 cm.

Formula used:

The volume of a hemisphere = (2/3)πr3

Where r → radius

Calculations:

The radius of the hemisphere (r) = 21/2 = 10.5 cm

According to question,

The volume of the hemisphere = (2/3)πr3

⇒ (2/3) × (22/7) × (10.5)3 = 2425.5 cm3

∴ The volume of the hemisphere is 2425.5 cm3.



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