Question

The sides of a triangle are in the ratio 5:12: 13. If its perimeter is 90 cm, find the area of the triangle​

Answer 1

Answer:

1st side of triangle be 5x

2nd side of triangle=12x

3rd side of triangle=13x

Then,

Area of triangle=sum of all sides

5x+12x+13x=30x

30x=90 cm

x=3 cm.

1st side of triangle=5×3=15 cm

2nd side of triangle=12×3=36 cm

3rd side of triangle=13×3=39

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