find the perimeter of triangle whose side is ( x+2y ) , (3x+2y) , (2x-y)
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Perimeter of triangle= (Side 1) + (Side 2) + (Side 3)
= (x+2y) + (3x+2y) + (2x-y)
= (x+3x+2x) + (2y+2y-y)
= 6x+3y
=3(2x+y)
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