Geometry Basics

3. an angle with a measure of 90 degrees
4. the common endpoint of an angle (where the sides intersect)
8. Made up of points with no thickness or width
10. two angles that share a common side and vertex
11. A flat surface made up of points and extends indefinitely in all directions.
13. an angle with a measure greater than 90 degrees
14. the intersection of two rays at an endpoint
15. A location with no shape or size
16. A line that extends infinitely in one direction

1. an angle with a measure less than 90 degrees
2. angles formed by intersecting lines that are equal and across from each other
5. equals 180 degrees
6. equals 90 degrees
7. A measurable part of a line consisting of two endpoints
9. Do not require a formal definition
12. two angles that are supplementary