In triangle ABC, the sides of AC and BC are equal, AC = 15 cm 6mm. Side AB is 6 cm 8 mm

In triangle ABC, the sides of AC and BC are equal, AC = 15 cm 6mm. Side AB is 6 cm 8 mm smaller than side BC Calculate the perimeter of triangle ABC.

Let’s find the AB side. To do this, let’s convert the units of measurement into millimeters. AC side = BC = 156 mm. The AB side is 68 mm less than the BC side.
AB = 156 – 68 = 88 mm.
The perimeter of a triangle is equal to the sum of the lengths of all its sides AB + AC + BC.
P = 88 + 156 + 156 = 400 mm.
We translate into centimeters. 400 mm is 40 cm.
Answer: The perimeter of triangle ABC is 40 cm.