Mensurationhard · Past Paper
If the radius of a sphere is doubled, how many times will its volume increase?
A2 times
B4 times
C8 times
D16 times
✓ Correct Answer: C — 8 times
New volume = (4/3)π(2r)^3 = 8 * [(4/3)πr^3]. So it increases by 8 times.
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