Volumes Practice Test 2

Question : 33 of 40

Marks: +1, -0

How many metres of cloth 5m wide will be required to make a conical tent, the radius of whose base is 7m and whose height is 24m?
(Take π = 22/7)

Solution:

Curved surface area of the conical tent =

{22}/7 × 7 × √{24^2+7^2}

= 22 × 25 =

550 m^2

Hence, length of the cloth required =

{550}/5

= 110 m

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