Question

its Find the cost of polishing a circular table-top of diameter 1.6 m, if the rate of polishing is Rs 15/m2. (Take n=3.14) flonath 44 cm and bent it into the shape of a circle.​

Answer 1

Explanation:

Given diameter of table (circular) =1.6m

radius =0.8m

area of circle = πr

2

=3.14×0.64=2.0096m

2

Now rate of polishing per meter square =15Rs

Cost of polishing table top = 15×2.0096

cost = 30.14m

2