In triangle ABC, side AC is 3 times larger than side AB and 3 cm larger than side BC.

In triangle ABC, side AC is 3 times larger than side AB and 3 cm larger than side BC. Find the perimeter of triangle ABC if you know that AB = 6 cm.

1. Find the length of the side AC of the triangle ABC.
6 * 3 = 18 (cm) speaker side length.
2. Find the length of the side BC of the triangle ABC.
18 – 3 = 15 (cm) BC side length.
3. The perimeter of a triangle is the sum of all its sides. P = AB + AC + BC.
Find the perimeter of the triangle ABC by substituting its measurements into the formula.
6 + 18 + 15 = 39 (cm) the perimeter of the ABC triangle.
Answer: 39 cm.