7. The inner diameter of a circular well is 3.5m. It is 10m deep. Find (i) its inner curved surface area

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7. The inner diameter of a circular well is 3.5m. It is 10m deep. Find (i) its inner curved surface area, (ii) the cost of plastering this curved surface at the rate of Rs. 40 per m^2.
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Oct
7. The inner diameter of a circular well is 3.5m. It is 10m deep. Find (i) its inner curved surface area, (ii) the cost of plastering this curved surface at the rate of Rs. 40 per m^2. (ii) the cost of plastering this curved surface at the rate of Rs. 40 per m^2. 7. The [...]
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