If the sides of the triangle are 4x+6y-8z , 7x-4y+9z and 3x-5y+11z, find the perimeter of the triangle?
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area of triangle=h+b+p
= (4x+6y-8z)+(7x-4y+9z)+(3x-5y+11z)=14x-3y+12z
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