Geometry Unit 1 Vocabulary

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Across
  1. 1. next to one another
  2. 5. a section of a line bounded by two endpoint
  3. 9. having the same measure
  4. 11. a pair of angles that sum to 90°
  5. 14. a location represented by a dot
  6. 16. the total length of the boundary of a polygon
  7. 17. a closed 2-dimensional shape formed by 3 or more sides
  8. 19. a line, segment, or ray that divides an angle into two congruent angles
  9. 20. a rule that is accepted without proof
  10. 21. an angle that measures exactly 90°
  11. 22. a straight line with a single endpoint that extends infinitely in one direction
Down
  1. 2. an angle that measures less than 90°
  2. 3. the point where 2 rays join to form an angle
  3. 4. The study of points, lines, planes, shapes, and figures
  4. 6. a point that divides a segment into congruent segments
  5. 7. a pair of opposite angles created by two intersecting lines
  6. 8. a pair of angles that sum to 180°
  7. 10. points that all lie on a single line
  8. 12. am angle that measures exactly 180°
  9. 13. an angle that measures more than 90°
  10. 15. points or/or lines that all lie within a single plane
  11. 18. a pair of adjacent angles that can be added to form a straight line (sum to 180°)a