Across
- 5. an angle that is less than 90 degrees
- 7. a shape that has 3 unequal sides
- 8. an angle greater than 90 degrees but less than 180 degrees
- 9. a triangle which has two sides equal
- 12. line segments that cross each other
- 17. a closed plane curve
- 19. polygon with 5 sides and angles
Down
- 1. a shape that has 2 sides parallel
- 2. an equilateral parallelogram having oblique angles
- 3. a shape that has 4 right angles
- 4. a polygon having eight angles and eight sides
- 6. a 90 degree angle
- 10. divide into 2 parts
- 11. angles
- 13. where 2 faces meet
- 14. a shape with 4 sides that are equal
- 15. the line segment between two points on a given curve
- 16. a position in space
- 18. a triangle having three unequal sides