The diameter of a right circular cone is 56 meters and its slant height is 35 meters. Find its volume (rounded off to the nearest integer). (Take π = 22/7).
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 17‚248 m3.
height² = slant height² − radius² = 35² − 28² = 1225 − 784 = 441
height = √441 = 21 m
Volume = (1/3) × π × radius² × height = (1/3) × (22/7) × 28 × 28 × 21 = 17,248