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

The circumference of the base of conical tent `=44m`

or, `2pir=44m`

`r=7m`

also given `h=10m`

so `l=(r^2+h^2)^(1/2)`

`l=149^(1/2)`

so curved surface area of tent`=pirl`

`=(22/7)xx7xx149^(1/2)`
and it is equal to area of canvas so

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