Question

Circumference of a circular field is 352 metre find the cost of planting it at the rate of Rupees 15. 60 per square metre

Answer 1

Answer:

Cost of planting a plant = rs 153753.60

Step-by-step explanation:

Given

Circumference of a circular field = 352 metre

Cost of planting it at the rate of Rupees 15. 60 per square metre

According to the question

Circumference of the circular field = 352 m

2 π R = 352 m

2 × 22/7 × R = 352 m

44 R = 352 × 7 m

44 R = 2464 m

R = 2464/44 m

R = 56 m

Here,

R is the radius of circle.

Hence,

Radius of circle (R) = 56 m.

Let area of circular field be A.

Area of circular field = π(R)^2

Area of circular field = π (56)^2

Area of circular field = (22 × 56 × 56)/7

Area of circular field = 68992/7 m^2

Area of circular field = 9856 m^2

Cost of planting a plant = A × cost of planting per m^2.

Cost of planting a plant = rs 9856 × 15.60

Cost of planting a plant = rs 153753.60

Hence,

Cost of planting a plant = rs 153753.60