Math, asked by nidhi6572, 8 months ago

pls answer pls pls pls answer...​

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Answered by princychavda13
1
Let a=120m b=80m c=50m

s=a+b+c/2

=120+80+50/2

=250/2

=125m

From heron's formula

Area of triangle=√s(s-a)(s-b)(s-c)

=√125*5*45*75

=√5*5*5*5*5*3*3*5*5*3

=375√15m2

Perimeter of trianglular park=250m

Space left for fencing=250-3

=247m

Cost of fencing 247m=247*20

=Rs.4940
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