a metal bucket in the shape of frustum of cone is of height 20 CM the radius of lower and upper ends are 10 cm and 25 CM respectively find the cost of making bucket if the metal sheet cost rupees 70 per hundred square centimetre
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Answer:
the CSA of frustum + π × r × r × 70
Step-by-step explanation:
csa=π×l(R+r)
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