The roof

The roof has the shape of a spherical canopy with a base diameter of 8 m and a height of 2 m, calculate the area of the foil with which the roof is covered, when we calculate 13% for waste and residues.

Correct result:

S =  56.8 m2

Solution:

d=8 m v=2 m  ρ=d/2=8/2=4 m  S1=2π ρ v=2 3.1416 4 250.2655 m2  q=13%=1+13100=1.13  S=q S1=1.13 50.2655=56.8 m2



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