Mathematics · Mensuration
The lateral surface area of a cone depends on the radius and its slant height. If there is a decrease of 10% in the radius and an increment of 10% in the slant height, the percentage increase or decrease in the lateral surface area is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12% increase
- 21% increase
- 31% decrease✓
- 42% decrease
Correct answer
1% decrease
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