Question

There is a fountain in the centre of a circular park. The distance of the

fountain from the boundary of the park is 70 m. What will be the total cost

of fencing the park if the rate of fencing is ₹50 per metre? (Take = 3.142)​

Answer 1

Answer:

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Answer 2

Given:

Distance of the fountain from the boundary of the park = 70 m.

Rate of fencing = ₹50 per m

To find:

The total cost of fencing the park

Solution:

The circumference of park = 2πr

where r is the distance of the fountain from the boundary of the park  

Thus, substituting the value -

Circumference = 2 × 3.142 × 70

= 140 × 3.142

= 439.8

The circumference is 439.8 m

Thus, total cost = circumference of park × fencing price

= 439.8 × 50

=  21990

Answer: The total cost of fencing the park is Rs. 21,990