Geometry - Unit 2 Vocabulary

7. Angles Two angles whose measures add up to 90°.
8. Interior Angles Angles inside the parallel lines on the same side of the transversal; supplementary.
10. Points Points that lie on the same straight line.
11. An exact location in space with no size, shape, or dimension. Represented by a dot.
15. Interior Angles Angles inside the parallel lines on opposite sides of the transversal; congruent.
16. – A flat surface that extends infinitely in all directions, with no thickness.
17. Pair Two adjacent angles that form a straight line; their measures add to 180°.
19. The set of points that two or more figures have in common
22. A quadrilateral with opposite sides equal and four right angles.
24. Angle An angle that measures exactly 180°.
25. A quadrilateral with all sides equal and opposite angles equal.

1. A quadrilateral with four equal sides and four right angles.
2. A quadrilateral with exactly one pair of parallel sides.
3. Segment A part of a line with two endpoints.
4. Angles Opposite angles formed by two intersecting lines; always congruent.
5. Points Points that lie on the same plane.
6. Angles Angles that share a common side and vertex but do not overlap.
9. Angles Angles in the same position on two parallel lines cut by a transversal; congruent.
12. Angles Two angles whose measures add up to 180°.
13. A polygon with four sides.
14. Formed by two rays with the same endpoint (vertex).
15. Exterior Angles Angles outside the parallel lines on opposite sides of the transversal; congruent.
16. A quadrilateral with two pairs of parallel sides.
18. A straight path that extends forever in both directions with no thickness.
20. Angle An angle that measures exactly 90°.
21. The common endpoint of the sides of an angle.
22. A part of a line that has one endpoint and extends forever in one direction.
23. A quadrilateral with two pairs of adjacent equal sides.