Question

find the cost of polishing a circular table top of diameter 1.6m if the rate of polishing is rs15/m²

Answer 1

Radius=1.6/2=0.8m
Cost =area×rate
=22/7×0.8×0.8×15
=₹30.50

Answer 2

Answer:

Hey mate,here is the solution of your question

To find the area of table top-

As diameter given=1.6m,so the radius will be 0.8m.Then area of circular table top=πr^2(3.14×r×r)=it's area.

Then to find the cost=₹15×area=total cost.