Find the volume of a cone, the radius of the base is 21 cm and the height is 20 cm. Take
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 9240 cm3
Given that
The radius of the base of the cone = 21 cm
The height of the cone = 20 cm
Formula used
The volume of a cone = ⅓ 𝜋r2h cubic units
Calculations
Volume = ⅓ 𝜋r2h = (1/3) × (22/7) × (21)2 × 20
= 22 × 21 × 20 = 9240 cm3