Across
- 1. two lines that never touch
- 3. the line segment that joins a vertex and the midpoint of the opposite side of a triangle
- 4. an angle more than 90 degrees
- 6. an angle that measures 180 degrees
- 9. a pair of opposite angles formed by intersecting lines
- 10. an angle less than 90 degrees
- 12. two angles that add up to 180 degrees
- 15. a shape with three sides
- 16. a 90 degree angle
- 18. a line that connects of the sides of a triangle
- 19. the intersection of two noncollinear rays at a common endpoint
Down
- 2. a line segment from a vertex and perpendicular to the opposite side
- 5. intersects two or more lines in the same plane at different points
- 7. a point on a line that divides into two equal segments
- 8. a line that starts at an endpoint and goes on forever in one direction
- 11. two angles that add up to 90 degrees
- 13. use to mark and represent locations
- 14. a way to compare two numbers
- 17. a line that passes through the midpoint of a line
- 20. a straight line that goes on forever in both derections