Geometry Part 1: Introduction to Geometry

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Across
  1. 3. An ____ angle measures more than 90 degrees.
  2. 6. The measures of corresponding angles are ___.
  3. 8. Angles are measured in ____.
  4. 9. A ____ angle measures exactly 180 degrees.
  5. 11. A line that passes through two parallel lines is a ___.
  6. 14. The middle point of an angle is called the ___.
  7. 15. A ____ angle is exactly 90 degrees.
  8. 16. Two rays that share a common vertex make an ____.
  9. 17. Two angles that share a vertex and a side are ___.
  10. 18. Two lines that never cross are ___ lines.
  11. 20. Corresponding, alternate interior, and consecutive interior are all special angle ___.
Down
  1. 1. A ____ is a tool to measure angles.
  2. 2. Two angles that add to 90 degrees are ___.
  3. 4. Two angles that add to 180 degrees are ___.
  4. 5. An obtuse angle measures ____ than 90 degrees.
  5. 7. ___ interior angles are supplementary.
  6. 10. ___ interior angles are equal in measure.
  7. 12. An ___ angle measures less than 90 degrees.
  8. 13. Two angles created by intersecting lines that are across from each other are ___.
  9. 19. An acute angle measures ____ than 90 degrees.