the sides of a triangle are 2 X + 3 y, x + 5 Y and 7 x - 2y find its perimeter
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Step-by-step explanation:
Perimeter= sum of all sides
Perimeter=(2x+3y)+(x+5y)+(7x-2y)
=2x+3y+x+5y+7x-2y
=(2x+x+7x)+(3y+5y-2y)
=10x+6y
so the perimeter of triangle is 10x+6y
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