CBSE Class 9 Answered
The perimeter of a triangle field is 450 m and its sides are in the ratio 13 : 12 : 5. Find the area of triangle.
Asked by Topperlearning User | 14 Mar, 2014, 08:07: AM
Expert Answer
Let a,b,c be the sides of a triangle in the ratio 13 : 12 : 5
a:b:c = 13 : 12 : 5 =>a=13x, b=12x, c=5x
Perimeter =13x+12x+5x=450 => 30x=450
Given that 2s = 450;
S = 225
Hence, area of triangle = =
=
=
=
= 53 ×33 × 2 = 6750 m2
Answered by | 14 Mar, 2014, 10:07: AM
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