Geometry Unit 1 Vocab

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Across
  1. 2. two angles directly across from each other on intersecting lines
  2. 4. an angle with a degree measure less than 90
  3. 5. two lines that never intersect
  4. 7. a flat surface made up of points and extends indefinitely in all directions
  5. 9. an angle with a degree measure greater than 90
  6. 10. a segment,line, plane, or ray that intersects a segment at its midpoint
  7. 12. a line that extends indefinitely in one direction
  8. 14. two lines that intersect at a right angle
  9. 17. the common endpoint of an angle
  10. 18. a line or ray that divides an angle into two equal parts
  11. 19. two segments with the same length
  12. 21. made up of points with no thickness or width
  13. 22. adjacent angles that are supplementary
  14. 23. two angles with degree measures that sum to 180
Down
  1. 1. an angle with a degree measure of 180
  2. 3. a line, segment, or ray perpendicular to a segment at its midpoint
  3. 6. an angle with a degree measure of 90
  4. 8. two angles that share a common side and vertex
  5. 11. two angles with degree measures that sum to 90
  6. 13. a location with no size or shape
  7. 15. the intersection of two rays at an endpoint
  8. 16. two angles that have the same measure
  9. 19. points that lie on the same plane
  10. 20. points that lie on the same line
  11. 21. a measurable part of a line with two endpoints