The sides of a triangle taken in order are each 3cm longer than the preceeding side. if the perimeter of the triangle is 81cm find the length of its sides
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let one side be x
then other two will be x+3 and x+3+3
buy perimeter of triangle=81
x+x+3+x+6=81
3x=81-9
3x=72
x=24
then other two will be x+3 and x+3+3
buy perimeter of triangle=81
x+x+3+x+6=81
3x=81-9
3x=72
x=24
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