Across
- 3. 5 sided polygon
- 4. 1 pair of parallel sides
- 8. a 180 degree angle
- 9. 2 lines that never intersect
- 10. triangle with all sides equal
- 11. Triangle that has a 90 degree angle
- 12. an angle between 90 and 180 degrees
- 13. triangle with 2 equal sides
- 15. 4 equal sides and 4 right angles
- 16. base x height for any parallelogram
- 17. A = 1/2 x base x height
- 18. add all sides
- 19. opposite sides are same length and 4 equal angles
- 20. opposite sides are parallel, all sides are equal
Down
- 1. a 4 sided polygon
- 2. 6 sided polygon
- 5. 2 lines form a right angle
- 6. an angle that measures less than 90 degrees
- 7. opposite sides are parallel: square, rectangle, rhombus
- 14. triangle with no equal sides
- 18. an enclosed shape made up of line segments