### Home > CAAC > Chapter 10 > Lesson 10.4.2 > Problem 10-137

10-137.

Make a table with the first column as the figure number and the second column as the number of tiles in the figure.

Rule: *x*^{2} + 2*x* − 1

There are 34 tiles in figure 5.

Each figure has a square of the figure number + the figure number + one less than the figure number.

There are other possible patterns.