Basic Geometry

3. Points that lie on the same plane.
5. A location with no size or shape.
6. A line, ray, or segment that divides an angle or segment into two equal parts.
7. Congruent angles that are across from each other on intersecting lines.
8. The intersection of two rays at a common endpoint.
9. Two lines that intersect at a 90° angle.
12. Two angles with measures that have a sum of 90°.
14. Two angles with measures that have a sum of 180°.

1. Angles are two angles that share a common vertex and side. They are next to each other.
2. A measurable part of a line consisting of two endpoints.
4. pair are Adjacent angles that are supplementary(add to 180).
5. A flat surface made up of points that extends indefinitely in all directions.
10. A line that extends indefinitely in one direction.
11. Points that lie on the same line.
13. Made up of points with no thickness or width; Extends indefinitely in both directions.