Question

11. Find the cost of polishing a circular table top of diameter 1.8m. if the rate of polishing is Rs. 21
m2. (Takeπ=3.14)​

Answer 1

Answer:

53.46

Step-by-step explanation:

radius=diameter/2=0.9m

area of table=πr^2=0.81π

so cost will be 0.81×3.14×21=53.46

Answer 2

*Refer the attachments.