Geometry Crossword Puzzle

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Across
  1. 5. a pair of adjacent angles formed when two lines intersect.
  2. 6. an angle with a measure of 90°
  3. 7. a flat surface made of points
  4. 8. an line that divides an angle into two equal parts
  5. 9. an angle with a measure of more than 90°
  6. 13. two lines that intersect at a 90° angle
  7. 16. a measurable part of a line consisting of two endpoints
  8. 17. lines that never touch
Down
  1. 1. two angles directly across from each other on intersecting lines
  2. 2. an angle with a measure of 180°
  3. 3. two angles that share a common side and vertex
  4. 4. two angles that add up with a sum of 180
  5. 8. an angle with a measure of less than 90°
  6. 10. points that lie on the same plane
  7. 11. having the same measure
  8. 12. the common endpoint of an angle
  9. 13. a location with no size or shape
  10. 14. a line that extends in one direction indefinitely
  11. 15. the intersection of two rays at an endpoint