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:

S =  166.4812 m2

Step-by-step explanation:

h=4 m a=100 dm m=100:10  m=10 m q=100%+30%=1+10030=1.3  w2 = h2+(a/2)2 w=h2+(a/2)2=42+(10/2)2=41 m6.4031 m S1=2a w=210 6.4031=5 41 m232.0156 m2  S=4 q S1=4 1.3 32.0156=26 41=166.4812 m2

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