Lampshade
The cone-shaped lampshade has a diameter of 30 cm and a height of 10 cm. How many cm2 of material will we need when 10% is waste?
Correct answer:
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You need to know the following knowledge to solve this word math problem:
algebraarithmeticsolid geometryplanimetricsbasic operations and conceptsUnits of physical quantitiesGrade of the word problem
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