Question

The perimeter of the triangle below is 92 units, find the length of side AB

Answer 1

39

Explanation:

1. Adding all the sides together gets 10x + 2 = 92 (perimeter)

2. Subtract 2 from both sides to get 10x = 90

3. Divide by ten to get x = 9

4. Side AB is listed as 4x + 3, and putting nine into that expression gets 39.