The volume of a right circular cone is 1232 cm3. If the height of cone is 24 cm, then what will be the radius of its base?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 7 cm.
| Understanding/Application |
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Volume of cone = (πr2h)/3 = 1232 cm3 Height of cone = 24 cm |
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(πr2h)/3 = 1232 [(22/7) × r2 × 24]/3 = 1232 528r2 = 25872 r2 = 49 r = 7 |