Across
- 6. a position in space
- 7. 90 degrees angle
- 8. greater than 90 degrees but less than 180
- 10. angles that add to 90 degrees
- 11. without a curve
- 13. a triangle with 2 lines of equal length
- 15. angles that add to 180 degrees on a line
- 17. the outside of the circle
- 19. lines that cross each other
- 20. part of a line
- 21. lines that never cross
Down
- 1. less than 90 degrees
- 2. lines that intersect at a 90 degree angle
- 3. a closed figure with 3 sides
- 4. equal in size and shape
- 5. angles that formed by intersecting lines
- 9. in a circle from middle to edge
- 12. 2 radius
- 14. a shape with 4 right angles
- 16. a shape with 4 right angles
- 18. a triangle with equal side and angles