Refer to the Math Notes box in Lesson 3.2.3.
Identify which side is longer and which is shorter.
Label the value of the lengths of each side.
Can you find a relationship between these values?
The longer side is two more than the shorter side.
By looking at the side lengths in the chart, we see that Side #2 is greater than Side #1.
Side #2 represents the x + 2 side of the tile shape.