Question

Find the cost of polishing the top of a circular table of diameter 4.2m, if the rate of polishing is rupees 12 per square CM.
ANSWER FAST PLZZZZZZ ​

Answer 1

Area of circle- πr^2

2r=d

2r=4.2m

r=2.1m

Area of circle- 22/7*2.1*2.1

Area of circle - 13.86 m sq.

Rate of polishing - Rs 12 cm sq.

Rate of polishing per m sq-12*100*100

- Rs 120000 m sq.

Total cost-effective 13.86*120000

1,663,200