• # question_answer How many meters of cloth 2.5 m wide will be required to make a conical tent whose base radius is 7m and height is 24 m. A)  220 m     B)  150 m          C)  300 m                         D)  300 m

Correct Answer: A

Solution :

(a): area of tent $=\pi rl=\pi r\sqrt{{{r}^{2}}+{{h}^{2}}}$ $=\frac{22}{7}\times 3.5\times \sqrt{{{(3.5)}^{2}}+{{24}^{2}}}$ $=11\times \sqrt{7588.25}.$

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