G.0 Geometry Vocabulary

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Across
  1. 2. the common endpoint of an angle
  2. 9. If A, B, and C are colliner points and B is between A and C, then AB + BC = AC
  3. 10. a specific location in space with no size or shape
  4. 11. an angle with a degree measure of 180 degrees
  5. 12. the shortest distance between two points with no thickness or width
  6. 13. Segment measurable part of a line consisting of two endpoints
  7. 14. an angle with a degree measure of 90 degrees
  8. 17. a line that extends indefinitely in one direction
  9. 18. a line, segment, or ray perpendicular to a segment at its midpoint.
  10. 21. any flat surface made up points and extends indefinitely in all directions
  11. 22. formula used to find the midpoint of a segment
  12. 23. or lines that lie of the same plane
  13. 24. two angles that share a common side and vertex "next to" each other
  14. 26. two segments with the same length, they are congruent
  15. 27. the branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs.
  16. 28. Postulate If <ABD and <DBC are adjacent, then <ABD + <DBC = <ABC
  17. 29. two lines that never intersect
Down
  1. 1. two angles that have the same measure
  2. 3. a line or ray that divides an angle into two equal parts
  3. 4. adjacent angles that are supplementary. Combined, they form a straight line.
  4. 5. two angles with measures that sum to 180 degrees *Do not have to be adjacent*
  5. 6. an angle with a degree measure greater than 90 degrees
  6. 7. that lie on the same line
  7. 8. formula used to find the length of segment
  8. 11. a segment, line, or plane that intersects at its midpoint
  9. 15. two angles directly across from each other on intersecting lines *always congruent*
  10. 16. the intersection of two rays at an endpoint
  11. 19. two angles with measures that sum to 90 degrees *Do not have to be adjacent*
  12. 20. an angle with a degree measure less than 90 degrees
  13. 25. two lines that intersect at a 90 degree angle (right angle)