# Geometry Notes 1.6: Two-Dimensional Figures

Review! Try problem #1 on Geogebra.

## *There may be more than one pair of correct answers for each question.*

1a) Name a pair of vertical angles.

1b) Name a pair of complementary angles.

1c) Name a pair of supplementary angles.

1d) Name a right angle (that is not marked already).

Please wait for the class.

A

**POLYGON**is a closed figure formed by three or more line segments called sides; each side intersects exactly two sides, one at each endpoint, so that no two consecutive sides are collinear. Each endpoint of a side is called a**VERTEX.**A polygon can be named by listing the vertices in consecutive order.Do #2 on your PRINTED NOTES.

Do #3 (with the class) and #4 (on your own) on your PRINTED NOTES.
We'll do #23 in breakout rooms if time permits.