The radius of a field in the form of a sector is 21cm. The cost of constructing a walk around the field is Rs.1875 at the rate of Rs.25 per meter. If it costs Rs.10 per m² to till the field, what will be the cost of tilling the whole field ?
Answers
Answered by
0
Answer:
3465 rupees
Step-by-step explanation:
r = 21 cm
total cost = 1875
cpm = 25
metres= 1875/25 = 75
75 = 2r + theta/360 x 2x22/7xr
theta= 90 degrees
area = 1/4 x 22/7 r^2
= 346.5 m^2
cost = ans x 10
= rupees 3465
shubham21112003:
i think first you have to convert the radius into centimeter from meter
sorry from centimeter to meter
U can edit ur answer
how will the perimeter be so large for a 21cm sector it is practically impossible
Similar questions