a 14m deep circular well has inner radius of 2m।find the cost of plastering it's inner curved surface at the rate of rs 15per metre square
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Answer:
Total cost of plastering = 176 × 15 = 2640 rupees
Step-by-step explanation:
The inner radius of the well = 2m
The depth of the circular well = 14m
We know that the curved surface area of the cylinder = 2 ×π × radius ×depth
The curved surface area = 2 × π × 2 × 14 = 176 square meter
The rate of plastering the inner curved surface area = 15 per square meter
Total cost of plastering = 176 × 15 = 2640 rupees
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