Question

A conical tent has slant height 10cm and radius of base is 7cm.Find the cost of cloths required
to make the tent at rate of Rs500 per square meter.

Answer 1

$conical \: tent \\ slant \: height = 10cm \\ radius = 7cm \\ find \ the \: cost \: of \: cloth \: to \: make \: tent \:at \: the \: rate \: of \: rs500 \: per \: {m}^{2} \\ c.s.a \: o \: cone = \pi \: rl \\ \frac{22}{7} \times 7 \times 10 \\ = 220 {cm}^{2} = 2.2 {m}^{2} \\ 1 {m}^{2} = 500 \: rupees \\ 2.2 {m}^{2} = 500 \times 2.2 \\ = 1100 \: rupees \: is \: the \: cost \: of \: cloth$