Across
- 1. A polygon with all equal sides and angles
- 5. A point in the middle of a line
- 8. A quadrilateral with at least one pair of parallel sides
- 9. An eleven sided polygon
- 10. A twelve sided polygon
- 11. A type of triangle in which all sides are equal
- 13. Two angles that when added together equal 180 degrees
- 15. A six sided polygon
Down
- 2. A line extending from one vertex of a triangle to form a 90 degree angle on the opposite side
- 3. Parallelogram whos angles all equal 90 degrees and whose sides are equal
- 4. A quadrilateral with two pairs of parallel sides
- 6. A type of triangle in which two sides are equal
- 7. Two lines in a plane that cross each other to form a 90 degree angle
- 12. A type of triangle in which no sides are equal
- 14. Two lines in a plane who will never cross each other
