Question

Q 9. A gardener has to put double fence all around a triangular park with sides 120 m, 80 m and 60 m. . In the middle of each side, there is a gate of width 10m .Find the length of the wire needed for the fence.​

Answer 1

Answer:

Here,

Therefore, area of park

Perimeter of park = 50 + 80 + 120 = 250 m

Thus, length of wire needed = 250 - 3 = 247 m

So, cost of fencing = Rs 20 247 = Rs 4940