Question

a triangular park abc has sides 10m 12.5 and 11.5 in the park each sides of park has gate 2m wide find the area of the park and the cost of fencing it with barbed wire at the rate of 20 rs per m

Answer 1

Answer:

here, a=120m,

b=80m,

c=50m

and, s=

2

a+b+c

​

=

2

250

​

=125

Area she need to plant grass =

s(s−a)(s−b)(s−c)

​

=

125(125−120)(125−80)(125−50)

​

=375

15

​

m

2

cost of fencing =[(a+b+c)−3].20

=[250−3].20

=Rs4940

Hope this information is helpful if it is pls mark me the Brainliest thanks