Question

1. The diameter of a circular well is 4.5 m and its depth is 7 m. Find the cost of cementing
the inner curved surface of the well at the rate of 3.50
per
m.​

Answer 1

Answer:

the curved surface area of the well which is in the shape of a cylinder. Thus, the cost of cementing the inner surface of the well at 120 per m² is Rs. 23760.

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