Church roof 2

The roof has the shape of a rotating cone shell with a base diameter of 6 m and a height of 2.5 m. How many monez (CZK) will cost the roof cover sheet if 1 m2 of metal sheet costs 152 CZK and if you need 15% extra for joints, overlays and waste?

Correct answer:

x =  6433.5026 Kc

Step-by-step explanation:

D=6 m r=D/2=6/2=3 m h=2.5 m  s=r2+h2=32+2.523.9051 m  S=π r s=3.1416 3 3.905136.8049 m2  x=152 1.15 S=152 1.15 36.8049=6433.5026 Kc

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