Across
- 4. Lines that are not coplanar
- 5. A triangle with three acute angles
- 6. Two vectors that have the same magnitude and are goin the same direction
- 7. The angle formed by a horizontal line and a line of sight to a point below
- 9. A ratio of two sides of a right triangle
- 12. A segment that is between two points and is going a certain direction
- 14. A pair of adjacent angles whose no common side are opposite rays
- 15. A quadrilateral with exactly two pairs of congruent consecutive sides
- 16. A ray that divides an angle in to two congruent angles
- 18. A chart that uses boxes and arrows to show the structure of the proof
- 19. A quantity that has both magnitude and direction
- 20. A point that divides a segment into two congruent segments
Down
- 1. The point of concurrency of the three angle bisectors of a triangle
- 2. A proof in which the statement is assumed to be false and a contradiction is shown
- 3. A repeating pattern of plane figures that completely covers a plane with no gaps or overlaps
- 8. A transformation that does not change the size or shape of the figure
- 10. Starting point of a vector
- 11. Ten- sided polygon
- 13. Abbreviation for "corresponding parts of congruent triangles are congruent"
- 17. A polygon in which no diagonal contains points on the exterior of the polygon