Across
- 3. connects the midpoint of a side and the opposite vertex
- 5. a triangle with only one symmetry axis
- 6. their sum is always 180°
- 7. circle whose center is the intersection of two of definition*
- 9. the symmetry axis of an angle
- 11. 3 in a triangle
- 12. Pythagoras' favourite!
Down
- 1. circle whose center is the intersection of two of the definition #
- 2. all its angles measure 60°
- 4. perpendicular to one side and through the opposite side
- 8. the symmetry axis of a side
- 10. intersection of two of definition %