Across
- 2. lines that pass through the same point
- 4. lines that intersect and form right angles
- 7. a triangle that has all sides are the same length, all angles are the same degree
- 9. an endless flat surface
- 11. a straight path of points that goes on and on in opposite directions
- 12. lines that never intersect
Down
- 1. an angle that forms a square corner
- 3. an angle that opens 180 degrees
- 5. an angle that opens less than 90 degrees
- 6. an angle that opens more than 90 degrees
- 8. part of a line with two end points
- 10. an exact location in space
- 13. part of a line that has one end point and continues on forever in one direction