Across
- 4. Angles on the outside of parallel lines cut by a transversal.
- 6. An angle greater than 90 degrees and less than 180 degrees.
- 8. Set of points all lying on the same line.
- 9. c^2=a^2+b^2
- 12. The exact opposite
- 14. The operation that undoes what was done by the previous operation.
- 15. Segments that have the same length.
Down
- 1. An angle less than 90 degrees, but more than zero degrees.
- 2. Non-coplanar lines that do not intersect.
- 3. The line segment between two points on a given curve.
- 5. Lying on the same plane.
- 7. Points where two or more line segments meet.
- 10. Triangle with all sides congruent.
- 11. Three-dimensional shape with a circular base and pointed top.
- 13. An enclosed volume.