Question

The perimetre of triangle fields is 135 cm and its side are in the 25:17:12 find its area

Answer 1

Perimeter=135cm

Let the ratio be. 25x,17x,12x

25x+17x+12x=135

54x=135

x=135/54

x=2.5

Putting the value 12x=12×2.5=30

17x=17×2.5=42.5

25x=25×2.5=62.5

Sides of triangle are 30 cm,42.5cm,62.5cm

Area of triangle=1/2bh

=1/2×62.5×42.5

=2656.25/2

=1328.125cm*2

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