Question

plzzz answer.... no ans. if not know

Answer 1

Radius of the field is 21m.
Cost of constructing the field is 1875 rupees.
Perimeter of field*rate of per metre = Total cost.
A/360*2πr*25 = 1875
A/360*2*22/7*21*25 = 1875
A/360*2*22*3 *25 = 1875
A/6*11*5 = 1875
A = 1875*6/55
A = 2250/11
Area of the field* rate per m² = Cost of tiling.
A/360*πr²*10 = Cost
Cost = 2250/360*11*22/7*21*21
Cost= 125/440*22*3*21
Cost = 125/20*3*21
Cost = 393.75 rupees
Total cost of tiling is 384 rupees(approx.)