Geometry Vocabulary

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Across
  1. 4. Perpendicular lines form ________ angles
  2. 9. Two lines that form right angles
  3. 11. To cut an angle in half
  4. 13. Angles that add to 180 degrees
  5. 15. Angles in the same position of the transversal
  6. 17. Lines in the same plane but never touch
  7. 18. Angles outside the parallel lines, opposite sides of the transversal
  8. 21. 3 medians of a triangle intersect at this point
  9. 22. Angle C is congruent to Angle C
  10. 24. A line drawn from the vertex of a triangle perpendicular to the opposite side
  11. 25. In similar triangles, sides are this
Down
  1. 1. Bisecting a segment at right angles
  2. 2. To cut a segment in half
  3. 3. A line drawn from the vertex of a triangle to the midpoint on the opposite side
  4. 5. Angles that add to 90 degrees
  5. 6. Two adjacent supplementary angles
  6. 7. To cut in half
  7. 8. In similar triangles, angles are this
  8. 10. To prove triangles similar, you need 2 pairs of ____________ congruent
  9. 12. A point in the middle of a line segment
  10. 14. An angle measuring less than 90 degrees
  11. 16. Angles inside the parallel lines, opposite sides of the transversal
  12. 19. Parallel to the third side, in the ratio of 1:2, connecting midpoints
  13. 20. These angles are opposite each other when two lines intersect
  14. 23. An angle measuring more than 90, but less than 180