Question

the perimeter of a triangle is 450m and its sides are in the ratio 13:12:15. find area of a triangle?
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Answer 1

Let the sides be 13x , 12x and 15x .

13x + 12x + 15x = 450 m

40x = 450 m

x = 450 m

40

x = 11.25 m

So , the sides are :

1st side = 13x = 13 × 11.25 m = 146.25 m

2nd side = 12x = 12 × 11.25 m = 135 m

3rd side = 15x = 15 × 11.25 m = 168.75 m

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