The roof of the church

The cone roof of the church has a diameter of 3 m and a height of 4 m. What is the size of the side edge of the church roof (s=?), and how many sheets of the sheet will be needed to cover the church roof?

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You need to know the following knowledge to solve this word math problem:

arithmetic

square root

solid geometry

cone
surface area

planimetry

Pythagorean theorem
right triangle
area of a shape
triangle

Grade of the word problem

practice for 13 year olds
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