Across
- 6. part of a line that consists of two endpoints and all points between them
- 7. two coplanar angles that have a common side and a common vertex but no common interior points
- 9. x=180
- 10. two-dimensional diagram that you can fold to form three-dimensional figure
- 11. two angles whose measures have a sum of 90
- 12. pair of adjaccent angles whose noncommon sides are opposite rays
- 13. angles that have the same measure
- 14. line,segment,or ray that is perpendicular to the segment at its midpoint
- 17. two coplanar angles with a common side,vertex, and no common interior points
- 19. part of a line that consists of one endpoint and all the points of the line on one side of the endpoint
- 20. rays two rays that share the same endpoint and form a line
Down
- 1. two angles whose measures have a sum of 180
- 2. 0<x<90
- 3. x=90
- 4. two angles whose sides are opposite rays
- 5. points and lines that lie in the same plane
- 8. lines that intersect to form right angles
- 11. segments that have the same length
- 15. ray that divides an angle into two congruent angles
- 16. 90<x<180
- 18. points that lie on the same line