A conical tent has a base radius of 7 m and a height of 24 m. What is the cost of the canvas needed for its curved surface at Rs. Taking π = 22/7, 60 per square metre?
Correct answer C. Rs. 33,000
Explanation
Slant height = square root of (7² + 24²) = 25 m. Canvas = πrl = 22/7 x 7 x 25 = 550 sq m. Cost = 550 x 60 = Rs. 33,000.
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