Across
- 1. / outline of something
- 6. / a four-sided regular polygon
- 7. / a set of tiles
- 8. / squares and equilateral triangles are, but not rectangles
- 10. / pattern resulting from the arrangement of regular polygons edge-to-edge to cover a plane without any gaps or overlappings
- 12. / describes a geometric figure with the same shape and size than another
- 13. / verb to cover something partly
Down
- 2. / a kind of triangle with three equal sides
- 3. / a eight-sided polygon
- 4. / a space between objects
- 5. / the points where line segments meet
- 9. / a five-sided polygon
- 11. / a plane figure with at least three straight sides