The inner diameter of a circular well is 3.5m it is 10m deep.find the cost of plastering its inner curved surface at Rs 4 per square metre
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just put the formula 2pierh the diameter is 3.5m so radius will be 1.75 or 3.5/2 first find the csa 10 will be height the csa will be 110 now the rate of 1m is rs 4 then the rate for 110 will be 110×4 which is 440. Hope it helps. Plzz mark sa brainliest.☺☺☺
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