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Across 3. two non-adjacent angles formed by two intersecting lines. (2 Words) 9. two angles whose measures have a sum of one hundred eighty degrees. (2 Words) 10. two coplanar lines that do not intersect. (2 Words) 12. measures that equal exactly ninety degrees. (2 Words) 16. angles that lie on opposite sides of the transversal t, outside two lines. (3 Words) 18. measures greater that zero degrees and less than ninety degrees. (2 Words) 20. angles that lie on the same side of the transversal t, between two lines. (3 Words) 25. y = b, where b is the y-intercept. (2 Words) 26. a pair of angles whose noncommon sides are opposite rays. (2 Words) 27. a ray that divides an angle into two congruent angles. (2 Words) 28. two lines that intersect and form four ninety-degree angles. (2 Words) 30. measures greater that ninety degrees and less than one hundred eighty degrees. (2 Words) 31. two angles in the same plane with a common vertex and a common side, but no common interior points. (2 Words) 32. on a line the value of y when x = 0; contains the point (0,b)

Down 1. planes that do not intersect. (2 Words) 2. an angle given in degrees. 4. the difference of the x-value of two points on a line. 5. lines that are not parallel and do not intersect. (2 Words) 6. a line that perpendicular to a segment at the segment's midpoint. (2 Words) 7. formed by two opposite rays and measure one hundred eighty degrees. (2 Words) 8. a line is y = mx + b, where m is the slope and b is the y-intercept. (2 Words) 11. two angles whose measures have a sum of ninety degrees. (2 Words) 13. angles that lie on the same side of the transversal t, on the same sides of lines. (2 Words) 14. nonadjacent angles that lie on opposite side of the transversal t, between two lines. (3 Words) 15. a line is y - y(1) = m(x - x(1)), where m is the slope and (x1. y1) is a given point of the line. (2 Words) 17. x = a , where a is the x-intercept. (2 Words) 18. marks used to show that two angles are congruent. (2 Words) 19. angles that have the same measure. (2 Words) 21. a line that intersects two coplanar lines at two different points. 22. a number that describes the steepness of the line. The ratio of the rise to run. 23. on a line the value of x when y = 0; contains the point (a,0) 24. one three hundred sixtieth of a circle. 29. the difference of the y-values of two points on a line.