Geometry Vocabulary

4. a point that divides the line segment into two equal halves
7. A two dimensional shape whose sides are parallel to each other
9. Bounded by two distinct points on a line
10. A location represented by a dot
12. A line that divides a line segment or angle into two equal parts
13. Half of the diameter
14. A shape that consists of three sides.
15. two or more lines that are always the same distance apart and never intersect, even if they are extended infinitely in both directions
16. Smaller than a right angle
17. Where two or more lines, edges, or curves meet
18. A 90° angle
20. Angles that sum up to 90°

1. Angles that sum up to 180°
2. two lines that form a 90 degree angle
3. Greater than 90° and less than 180°
5. A two dimensional flat surface
6. a line with a single endpoint (or point of origin) that extends infinitely in one direction
8. A polygon that has four sides, four angles, and four vertices
11. To have the same shape and size
19. A straight line that makes a right angle with another line