The length of the sides of ΔABC are consecutive intergers. It ΔABC has the same perimeter as an equilateral triangle, triangle with a side of length 9 cm, what is the length of the shortest side of ΔABC?

Perimeter of an equilateral triangle with side 9 cm = 9× 3 = 27 cm


Let the sides of ∆ABC are: AB = (Since the sides of ∆ABC are consecutive intergers)


Perimeter of ∆ABC = Perimeter of equilateral triangle




9