Geometry Vocabulary

2. Two angles with measures that add to 180'.
4. Two angles with measures that add to 90'.
6. Two angles that have the same measure.
7. Two angles directly across from each other on intersecting sides.
8. An angle with a degree measure of 180'.
11. An angle with a degree measure of 90'.
12. Adjacent angles that are supplementary. Combined they form a straight line.
16. An angle with a degree measure more than 90'.
17. The common endpoint of an angle.
18. An angle with a degree measure less than 90'.
21. Two lines that intersect at a 90' angle.
23. Points that lie on the same line.

1. Two lines that never intersect.
3. Two angles that share a common side and vertex.
4. Two segments that are the same length.
5. A measurable part of a line consisting of two endpoints.
9. A line or ray that divides an angle into two equal parts.
10. A line that extends indefinitely in one direction.
13. A location with no size or shape.
14. The intersection of two rays at an endpoint
15. A segment, line, or plane that intersects a segment at its midpoint.
19. Points that lie on the same plane.
20. Made up of points with no thickness or width.
22. A flat surface made up of points and extends indefinitely in all directions.