Math, asked by harshpreetkaur10, 1 year ago

a cylindrical well is 21 metre deep its inner diameter is 14 find the cost of renovating the inner curved surface and the base @ rupees 25 per metre square

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Answered by haridasan85

3

Answer:

.area= πr 2+2 πrh

22x7x7 / 7 +2x22x7x21/7 =

154+924=1078m2

cost = 1078x25= Rs26950

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