Across
- 4. a plane figure with six straight sides and angles.
- 8. a quadrilateral with no sides parallel.
- 9. a four-sided plane rectilinear figure with opposite sides parallel.
- 11. a plane figure with five straight sides and five angles.
- 12. a triangle in which all three sides are equal
- 13. two lines that are always the same distance apart and never touch
Down
- 1. a flat surface on which a straight line joining any two points on it would wholly lie - "the horizontal ….."
- 2. a plane figure with eight straight sides and eight angles.
- 3. a triangle that has two sides of equal length
- 5. two lines that share exactly one point
- 6. a right-angled triangle.
- 7. a four-sided figure.
- 9. the relationship between two lines which meet at a right angle (90 degrees)
- 10. a 4-sided flat shape with straight sides where all sides have equal length - opposite sides are parallel and opposite angles are equal