Question

The lenght of the sides of a triangle are consecutive integers. If triangle has the same perimeter as an equilateral triangle with a side of 9 cm, what is tue length of the shortest side

Answer 1

perimeter = 9*3=27
x+x+1+x+2=27
x=8
ans.8cm

Answer 2

Let the length of the sides of a triangle be X,X+1, X+2

perimeter of equilateral triangle with side 9 cm is equal to 9+9+9=27cm


therefore
X+X+1+X+2=27
3x+3=27
3X=27-3=24
X=24/3
X=8
the length of the shortest side =8cm


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