Roof material calculation

How much sheet is needed for a roof with the shape of a regular quadrilateral pyramid if its edge is 2.8 m long and the height of the roof is 0.8 m? Calculate 10% for the overlap (extra).

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

algebra

rearrange variables

arithmetic

square root
second power

solid geometry

pyramid
surface area

planimetry

Pythagorean theorem
right triangle
area of a shape

basic operations and concepts

percentages

Grade of the word problem

practice for 13 year olds
practice for 14 year olds

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