# Plenty of dots

**Discrete Mathematics**Level 4

Find the number of quadrilaterals in the given figure. Do not include degenerate quadrilaterals.

In the given figure, IJKL, AB & WXYZ are line segments that are parallel to each other.

There are 20 defined points on IJ which are connected to A by line segments.

There are 20 defined points on JK which are connected to both A and B by line segments.

There are 20 defined points on KL which are connected to B by line segments.

There are 20 defined points on XW which are connected to A by line segments.

There are 20 defined points on XY which are connected to both A and B by line segments.

There are 20 defined points on YZ which are connected to B by line segments.