Question

A triangular park has sides 120m, 80 m ,and 50 m. A gardener has to
plant grass inside . How much area
does he need to plant?​

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