If each side of a triangle is increased by 4 cm the ratio of the perimeter of new triangle and given triangle is 7:5 . Find the perimeter of the triangle .
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Perimeter of given triangle be x.
Perimeter of new triangle = x+ 3*4 = x+12
Now, The given ratio is 7:5.
i.e. x+12 / x = 7/5
x= 30 cm .
Perimeter of new triangle = x+ 3*4 = x+12
Now, The given ratio is 7:5.
i.e. x+12 / x = 7/5
x= 30 cm .
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