Geometry Vocab

3. When a pair of adjacent angles form a straight angle.
6. The distance around a circle
7. When you flip the top and bottom of a fraction
10. A ray that divides an angle into two congruent angles
11. A segment in a triangle whose endpoints are a vertex and the midpoint of the opposite side
12. When two angles add up to 90 degrees
14. A line with one direction
17. An angle less than 90 degrees
18. When two points are the same distance from an object
20. When two angles add up to 180 degrees

1. An angle greater than 90 degrees
2. Point of concurrency of the perpendicular bisectors of a triangle
4. A ray that is perpendicular to a line segment at its midpoint.
5. Point of concurrency of the angle bisectors of a triangle (where they all meet)
8. When two lines never touch
9. Corner of a figure
13. The distance from the center of a circle to the outside of a circle
15. Point of concurrency of the altitudes of a triangle
16. Line from a vertex of a triangle to the opposite side that is perpendicular to the side.
19. Point of concurrency of the medians of a triangle