Question

A triangular Park ABC has sides 100m, 60m and 80m. A gardener has to put a
fence all around it and also plant grass inside. How much area does she need to plant?
Find the cost of fencing it with barbed wire at the rate of Rupees 50 per metre leaving
a space 5m wide for a gate on one side.​

Answer 1

Answer:

HEY MATE HERE YOUR ANSWER

MARK AS BRAINLIEST

Step-by-step explanation:

here, a=120m,b=80m,c=50m

and, s=2a+b+c=2250=125

Area she need to plant grass =s(s−a)(s−b)(s−c)=125(125−120)(125−80)(125−50)

=37515m²

cost of fencing =[(a+b+c)−3].20

=[250−3].20

》=Rs4940

Answer 2

Answer:

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