Chapter One Vocabulary Geometry

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Across
  1. 3. exactly 180
  2. 4. two angles whose sides are opposite rays
  3. 7. geometric tool used to draw circles and pairs of circles called arcs
  4. 10. the absolute value of the difference of real numbers paired with
  5. 11. A two-dimensional diagram that can fold to form a three-dimensional figure
  6. 12. the sum of the lengths of its sides
  7. 14. The set of all points in three-dimensions
  8. 15. two lines that intersect to form right angles
  9. 17. two angles whose measures have a sum of 90
  10. 20. points that lie on the same line
  11. 21. a pair of adjacent angles whose noncommon sides are opposite rays
  12. 22. a ray that divides an angle into two congruent angles
  13. 24. a ruler with no markings
  14. 25. two rays that share the same endpoint and form a line
  15. 26. a geometric figure drawn using a straightedge and a compass
  16. 28. more then 90 less then 180
  17. 29. A point,line,ray, or other segment that intersects at its midpoint
  18. 30. Part of a line that consists of one endpoint and all the points of the line on one side of the endpoint
  19. 31. represented by a straight path that extends in two opposite directions
  20. 32. less then 90
Down
  1. 1. indicates a location and has no size
  2. 2. The rays of an angle
  3. 3. two angles whose measures have a sum of 180
  4. 5. shows a corner view of a three-dimensional figure
  5. 6. If two segments have the same length then they are...
  6. 8. Angles with the same measure
  7. 9. represented by a flat surface that extends without end
  8. 13. exactly 90
  9. 15. a line,segment,or ray that is perpendicular to the segment at its midpoint
  10. 16. Formed by two rays with the same endpoint
  11. 17. The real number that corresponds to a point
  12. 18. a point that divides the segment into two segments
  13. 19. two coplanar angles with a common side,vertex,and common interior points
  14. 23. Points and lines that lie in the same plane
  15. 27. the endpoint of an angle
  16. 29. Part of a line that consists of two endpoints and all points between them