G.0 Geometry Vocabulary

2. the common endpoint of an angle
9. If A, B, and C are colliner points and B is between A and C, then AB + BC = AC
10. a specific location in space with no size or shape
11. an angle with a degree measure of 180 degrees
12. the shortest distance between two points with no thickness or width
13. Segment measurable part of a line consisting of two endpoints
14. an angle with a degree measure of 90 degrees
17. a line that extends indefinitely in one direction
18. a line, segment, or ray perpendicular to a segment at its midpoint.
21. any flat surface made up points and extends indefinitely in all directions
22. formula used to find the midpoint of a segment
23. or lines that lie of the same plane
24. two angles that share a common side and vertex "next to" each other
26. two segments with the same length, they are congruent
27. the branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs.
28. Postulate If <ABD and <DBC are adjacent, then <ABD + <DBC = <ABC
29. two lines that never intersect

1. two angles that have the same measure
3. a line or ray that divides an angle into two equal parts
4. adjacent angles that are supplementary. Combined, they form a straight line.
5. two angles with measures that sum to 180 degrees *Do not have to be adjacent*
6. an angle with a degree measure greater than 90 degrees
7. that lie on the same line
8. formula used to find the length of segment
11. a segment, line, or plane that intersects at its midpoint
15. two angles directly across from each other on intersecting lines *always congruent*
16. the intersection of two rays at an endpoint
19. two angles with measures that sum to 90 degrees *Do not have to be adjacent*
20. an angle with a degree measure less than 90 degrees
25. two lines that intersect at a 90 degree angle (right angle)