Across
- 2. space to cover the outside of a 3D figure
- 4. transformation to flip a shape across a line
- 6. base is a polygon and the sides are triangles
- 8. closed figure with many sides
- 9. length around a 2D figure
- 12. four sided polygon
- 13. the angle where two sides meet
Down
- 1. quadrilateral with one pair of parallel sides
- 3. space inside a 2D figure
- 5. polygon with 3 sides
- 7. three sided figure with a 90 degree angle
- 10. quadrilateral with two sets of parallel sides
- 11. space to fill the inside of a 3D figure
- 14. parallelogram with all sides equal length