Across
- 3. Two lines that cross at 90 degree angles
- 6. A point that divides a line segment into two equal pieces
- 7. The point of an angle
- 8. Lines that aren't parallel, but don't intersect
- 9. Objects on the same line
- 10. To divide something into two equal parts
- 11. Part of a line that extends forever in one direction
Down
- 1. Objects on the same plane
- 2. Part of a line that has two endpoints
- 4. A set of points which extends in opposite directions infinitely
- 5. Two angles that sum to 180 degrees
- 12. Part of a circle used in geometric constructions