Geometry Notes 1.6: Two-Dimensional Figures
![Image](https://www.geogebra.org/resource/wpvkjw8n/1ROwQAh1FRRYROeI/material-wpvkjw8n.png)
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.
![Image](https://www.geogebra.org/resource/vubqah47/iGxsDQ5uuBJg7fzK/material-vubqah47.png)
![Image](https://www.geogebra.org/resource/eskawxfv/zAOW0JRjhG3V5ptp/material-eskawxfv.png)
Do #3 (with the class) and #4 (on your own) on your PRINTED NOTES.
We'll do #23 in breakout rooms if time permits.