Question

the diameter of a well is 3 m and depth is 14 M find the cost of plastering the well if the plastering cost is rupees 8 per square metre ​

Answer 1

Answer:

the diameter of the well = 3 m

and radius (r) = 3/2

height of well = 14 m.

curved surface area of the well = 2nrh

= 2x22/7x3/2x14

= 132m^

so, the cost of plastering the well if the plastering cost is 8 per sq.m. = 8x132

= 1,056

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