This unit is a follow-up to my Quadrilaterals unit, but explores figures with more than four sides.

A unit on circles, arcs, chords, secants, and tangents. This reference unit is just problems, without readings.

Using the Pythagorean Theorem to find the sides of a right triangle

A unit describing the relationships of sides, angles, and diagonals of various quadrilaterals

Recognizing and working with similar triangles.