Find the cost of polishing a circular table top

Asked by admin @ 17/08/2021 in Math viewed by 283 People

Find the cost of polishing a circular table top of diameter 1.4m if the rate of polishing is 25₹/sq m.

Answered by admin @ 17/08/2021

Area of the table=πr²
radius=diameter/2 =1.4/2= 0.7
so, area=22/7×0.7×0.7
=1.54m²

cost of 1m²=₹25
cost of 1.54m²= ₹25×1.54=
₹38.5

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