Across
- 4. x coordinates
- 8. add up to 180 degrees
- 9. add up to 90 degrees
- 11. length times width
- 12. vertical angles are these
- 15. sum of all sides
- 16. the slope of a vertical line
- 17. unknown value
- 18. the point where a line meets the y axis
Down
- 1. beside
- 2. equal
- 3. what something can hold
- 5. one x for each y
- 6. longest side of a right triangle
- 7. rise over run
- 8. area space around something
- 10. the slope of a horizontal line
- 13. number multiplied by a variable
- 14. y coordinates