Across
- 5. perpendicular lines(90degree angle)
- 6. radians angle unit
- 9. "
- 11. same shapes not same size
- 13. line that start from point A
- 14. segment, line from point A to point B
- 15. 1turn=360deg
Down
- 1. distance between points x and y
- 2. equivalence of geometric shapes and size
- 3. arcminute 1deg=60'
- 4. triangle shape
- 7. arc from point A to point B
- 8. formed by two rays
- 10. parallel lines
- 12. angle, =90degree