Question

15. How many metres of cloth 5m wide will be required to make a conical tent, the radius of whose base is 7 m and whose height is 24m.

Answer 1

see here is the answers of your question

Answer 2

AnswEr:

Let x m be the radius , h m be the height and l m be the slant height of the tent.

Then,

• x = 7 m
• h = 24 m

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$\qquad \sf \: l = \sqrt{ {r}^{2} + {h}^{2} } \\ \\ \qquad \implies \sf \: l = \sqrt{49 + 576} = \sqrt{625} = 25$

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Now,

Curved surface = πrl m²

$\sf = ( \frac{22}{7} \times 7 \times 25) \: {m}^{2} = 550 \: {m}^{2}$

$\therefore$ Area of the canvas used = 550 m²

It is given that the width of the canvas is 5m.

$\therefore$ $\underline\mathfrak{Area\:of\:the\:canvas\:used:}$

$\sf = \frac{area}{width} = \frac{550}{5} m \\ \\ \sf = 110 \: m$