Geometry Vocabulary Crossword

Points that are on the same plane.
Each of the pairs of opposite angles made by two intersecting lines.
The point about which an angle is measured.
To add line segments together.
A part of a line with one endpoint that goes infinitely in one direction.
Points that aren't on the same line.
A flat surface that extends forever with no thickness.
Either of two angles whose sum is 180 degrees.
A "dot" with no thickness.
Two angles with a common vertex and side.
Line that splits an angle into two equal portions.
Either of two angles whose sum is 90 degrees.
A pair of adjacent angles formed when two lines intersect.
A point on a line or line segment that splits it into two equal halves.
Infinite in both directions - straight path with no thickness.