What length of tarpaulin 9 metre wide will be required to make a cylindrical tent of height 9 metre and base diameter 7 metre.
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JBGeorge1513
11.12.2017
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what length of tarpaulin 3m wide will be required to make a conical tent of height8 m and base radius 6 m assume that extra length of material that will be required for stitching margin and wastage in cutting is approximately 20 cm
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Given a conical tent with
Height ( h ) = 8m
Radius ( r ) = 6m
So, its length = l2 = h2 + r2
= l2 = ( 8 )2m + ( 6 )m2
= l2 = 64m + 36m
= l2 = 100m
= l = 10m
Curved surface area of the cone = TTrl
= 3.14 x 6m x 10m
= 188.4 cm2
The extra length of material that will be required for stiching margins and wastages in cutting is approx 20 cm = 0.2m
So, its length = l - 0.2m
and its width = 3m
area of sheet = CSA of tent
so the area of the trapaulln = l x b
= ( l - 0.2m ) x 3m = 188.4m2
= l - 0.2m = 62.8m2
= l = 63m
Therefore, length of the trapaulin sheet required is 63m.