Question

find the cost of polishing a circular table top of diameter is 4 cm of rate of polishing is 20 per square cm take pi = 3.14
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Answer 1

Answer:

Diameter of the circular table top = 1.6 m \Radius of the circular table top =1.6/2 =0.8 Area of circular table top = π r 2 = 3.14 x 0.8 x 0.8 = 2.0096 m2 Now cost of 1 m2 polishing = Rs 15 Then cost of 2.0096 m2 polishing = 15 x 2.0096 = Rs 30.14 (approx.) Thus, the cost of polishing a circular table top is Rs 30.14 (approx.)

Step-by-step explanation:

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