Q.no.26- tbe diameter of a circular Park is 86 metre .on its outside there are 400 cm wide path running around

It. find the cost of turfing the path at rupees 7.5 per square . Also find the cost of fencing the park at

11 per square metre.

# Q.no.26- tbe diameter of a circular Park is 86 metre .on its outside there are 400 cm wide path running around

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Answer:–→ Radius of circular park = D/2 = 86/2 = 43 m .

so,

→ Cost of fencing the park = Rate * circumference = 11 * 2 * 3.14 * 43 =

Rs. 2970.44(Ans.)now,

→ Area of path = π[(43 + 4)² – (43)²] = 3.14(47² – 43²) = 3.14 * 90 * 4 =

1130.4m².then,

→ Cost of turfing the path = Rate * Area = 7.5 * 1130.4 =

Rs.8478(Ans.)Learn more:-Q.no.21, diameter of wheel is 130 cm how many revolutions will it make to cover a distance of 80

kilometre.

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