1.

The area of a circular field is 13.86 hectares. Find the cost of fencing it at the rate of Rs. 4.40 per metre. 

Answer»

Area = (13.86 x 10000) m2 = 138600 m2 . 

πR2 = 138600 

(R)2 = (138600 x (7/22)) 

R = 210 m. 

Circumference = 2πR = (2 x (22/7) x 210) m = 1320 m. 

Cost of fencing = Rs. (1320 x 4.40) = Rs. 5808



Discussion

No Comment Found