Storm and roof
The roof of the building is a cone with a height of 3 meters and a radius equal to half the height of the roof. How many m2 of the roof need to be repaired if 20% were damaged in a storm?
Correct answer:

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You need to know the following knowledge to solve this word math problem:
solid geometryplanimetricsbasic operations and conceptsUnits of physical quantitiesGrade of the word problem
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