Four-sided 27601
The house's roof has the shape of a regular four-sided pyramid 4 m high with a base edge of 100 dm. We consider 30% of the roofing in addition to the overlap. Calculate how much m2 of roofing is needed to cover the roof.
Correct answer:

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The Pythagorean theorem is the base for the right triangle calculator.
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See also our trigonometric triangle calculator.
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