the cost of fencing a circular field at the rate of rs 24 per metre is rs 5280. the field is to be ploughed at the rate of rs 0.5 per m2. find the cost of ploughing the field.
5,280 / 24 = 220 meters - Circumference of the field
220/Pi =70.03 - Diameter of the field
70.03/2 =35.015 - Radius of the field.
Area =r^2 . Pi
Area =35.015^2 x Pi
Area =3,851.75 m^2 - the area of the field.
3,851.75 x 0.5 =1,925.875 rs - the cost of ploughing the field.