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Class 10 Mathematics Medium Mcq English Medium

A frustum has radii 10 cm and 4 cm. Which expression gives its volume at height 6 cm?

Question
A frustum has radii 10 cm and 4 cm. Which expression gives its volume at height 6 cm?
6p(100+16)/3
6p(100+16+40)/3
6p(14)/3
6p(100-16)/3
Answer
6p(100+16+40)/3
Detailed Explanation
Frustum volume is (1/3)ph(R² + r² + Rr), giving 6p(100+16+40)/3. — Examisthan.com
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