Across
- 1. Lines that intersect at 90 degrees
- 5. Tool used to measure angles
- 7. A 3-sided polygon
- 8. An angle smaller than 90 degrees
- 9. A 4-sided shape with equal sides and right angles
Down
- 2. A round shape with no edges
- 3. A 4-sided shape with opposite sides equal and right angles
- 4. When one half of a shape mirrors the other
- 5. Lines that never intersect (e.g., railroad tracks)
- 6. An angle larger than 90 degrees but less than 180 degrees