Question

30.Find the cost of polishing a circular table top of diameter 1.8 m,if the rate of polishing is 20 rupees per m^2.(use π=3.14) *

2 points

(a) 30.14

(b) 508.68

(c) 50.868

(d) none of these

​

Answer 1

Step-by-step 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 please mark me Brainliest

2