Correct Answer - Option 2 : 1078 cm
3
Given:
The radius of the cone = 7 cm
Height of the cone = 21 cm
Formula used:
Volume of a cone = (1/3) × π × r2 × h
Where, r = radius of the cone
h = Height of the cone
Calculations:
Volume of the cone = (1/3) × π × r2 × h
⇒ (1/3) × π × 72 × 21
⇒ (1/3) × (22/7) × 49 × 21
⇒ 1078 cm3
∴ The volume of the cone is 1078 cm3.