Question

3 Theree different triangular plats are available for sale in a locality Each plat has a perimeter af 120m the side longths are also given . Perimeter length of sides 30m, 40m, som shape of plat Right angled triangle 120m Acute angled triangle 1 20m 35m, 40m, 45 m Equilateral braiangle 120m 40m, 40m, 40m​

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

Step-by-step explanation:

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