Mathematics · Mensuration

The radius of a cone is increased by 10% and its height is decreased by 10%. The percentage increase or decrease in its volume is:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1No change
2Decrease, 10%
3Increase, 8.9%✓
4Increase, 8%

Correct answer

Increase, 8.9%

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The radius of a cone is increased by 10% and its height is decreased by 10%. The percentage increase or decrease in its volume is:

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