What length of tarpaulin 3 m wide will be required to make a conical tent of height 8 m and base radius 6 m? Assume that the extra length of material will be required for stitching margins and wastage in cutting is approximately 20 cm. (Use π=3.14).
we have,
Height of tent = 8 m
Base radius = 6 m
Slant height (l) =
=
= 10 m
Curved surface area of the cone = πrl = 3.14×6×10 m2
∴Length of 3 m wide tarpaulin required
=
= 62.8 m
Extra length required for stitching and cutting wastage = 0.2 m
Total length required = 62.8+0.2 = 63m
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