The perimeter of a triangle is 45m. Ratio of its sides are 3:4:2, find the length of
its biggest side.
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Solution :
The sides in a triangle are in the ratio of 3 : 4 : 2.
Suppose that the sides of the triangle are 3x, 4x and 2x respectively.
Perimeter of the triangle :
> Side 1 + Side 2 + Side 3
> 3x + 4x + 2x
> 9x .
But, the perimeter of the triangle is 45m.
> 9x = 45
> x = 5.
The biggest side of the triangle is 4x
> 4x = 4 * 5 = 20 meters.
The other sides of the triangle are 15 meters and 10 meters respectively.
This is the required answer.
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