Unit 1 Geometry Vocabulary

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Across
  1. 2. two angles with measures that sum to 90
  2. 3. a flat surface made up of points and extends indefinitely in all directions
  3. 5. two angles directly across from each other on intersecting lines *always congruent*
  4. 6. two angles that share a common side and vertex. "Next to" each other
  5. 7. the intersection of two rays at an endpoint
  6. 9. the common endpoint of an angle (where the sides intersect)
  7. 10. an angle with a degree measure less than 90
  8. 12. an angle with a degree measure of 180
  9. 14. a location with no size or shape
  10. 17. adjacent angles that are supplementary. Combined, they form a straight line
  11. 18. lines that never intersect
  12. 21. formula used to find the midpoint between to endpoints
  13. 23. two angles with measures that sum to 180
  14. 24. points that do not lie on the same line
Down
  1. 1. measurable part of a line consisting of two endpoints
  2. 2. point that lie on the same line
  3. 4. formula used to find the distance between two points on a coordinate plane
  4. 8. a line, segment, or ray perpendicular to a segment at its midpoint
  5. 11. a segment, line, or plane that intersects a segment at its midpoint
  6. 13. points that lie on the same plane
  7. 15. two lines that intersect at a right angle
  8. 16. a line or ray that divides an angle into two equal parts
  9. 19. an angle with a degree measure of 90
  10. 20. made up of points with no thickness or width
  11. 22. a line that extends indefinitely in one direction
  12. 25. an angle with a degree measure greater than 90