Across
- 3. a point where two rays (lines) meet
- 7. Two or more angles that add up to 180°
- 11. Flat surface that goes on forever
- 12. Angle that measures exactly 90°
- 13. 3D Shape with two congruent parallel faces
- 14. Angle that measures exactly 180°
- 17. Triangle with all acute angles
- 18. Angle that measures greater than 90° but less than 180°
- 20. angles that are next to each other, they share a ray.
Down
- 1. Triangle with all different sides
- 2. Triangle with two sides the same length
- 4. Triangle with one 90° angle
- 5. Triangle with one obtuse angle
- 6. Where two faces meet and from a line segment
- 8. 3D shape with one base and all other triangles
- 9. Triangle with all sides the same length
- 10. Angle that measures less than 90°
- 15. two or more angles that add up to be 90°
- 16. Angles opposite each other formed by intersecting lines, are congruent
- 19. A flat surface