If each side of a triangle is increased by 4 cm, the ratio of perimeters of the new triangle and given triangle is 7:5. Find the perimeter of of the given triangle.
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let the sides of the perimeter be x y and z..
perimeter = x + y+z
new side =x+y+z+12 .....
perimeter =x+ y + z+12.....
then put in equation and get the answe. .
i think it is 31
perimeter = x + y+z
new side =x+y+z+12 .....
perimeter =x+ y + z+12.....
then put in equation and get the answe. .
i think it is 31
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