Across
- 2. A parallelogram with four congruent sides.
- 3. A quadrilateral with two pairs of consecutive sides congruent.
- 5. A rhombus with four right angles.
- 6. A polygon with an angle greater than 180 or a diagonal can be drawn outside of the polygon.
- 8. A polygon with all angles less than 180 or a polygon with all diagonals inside the polygon.
- 9. Same size and same shape.
- 10. Line segments connecting any two non-adjacent vertices.
- 11. A quadrilateral that has two pairs of opposite sides congruent.
Down
- 1. A triangle is formed if the sum of the lengths of two sides is greater than third side length.
- 2. A parallelogram with four right angles.
- 4. A quadrilateral with at least one pair of parallel sides.
- 7. Dividing polygons into triangles.