The circumference of the base of a 10m high conical tent is 44 metres. Calculate the length of canvas used in making the tent if width of canvas is 2m. `(U s epi=(22)/7)`

Explanation

circumference of the base `=44m`

`2pir=44m`

`r=7m`

`h=10m` (given)

so `l=(7^2+10^2)^(1/2)`

`l=(149)^(1/2)`

so curved surface area`= pirl`

`=(22/7)xx7xx(149)^(1/2)`

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