Geometry Vocab

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Across
  1. 3. Lying on the same line. Not always congruent.
  2. 5. An infinite flat surface. Made of points and extends indefinitely.
  3. 10. Closed plane figure. Has at least 3 sides.
  4. 11. An angle. Measures exactly 90. (2 wrds)
  5. 12. Two coplanar lines. Do not intersect. (2 wrds)
  6. 17. 2 angles. Add to 180. (2 wrds)
  7. 18. In the middle of a line. Both sides of the line are congruent.
Down
  1. 1. 2 non-adjacent angles. Formed by intersecting angles. (2 wrds)
  2. 2. Made of points. Has no length or width, and extends infinitely.
  3. 3. Lying on the same plane. Not always congruent.
  4. 4. Same size and shape. Both are equal if congruent.
  5. 6. An angle. Measures 180. (2 wrds)
  6. 7. Commonly an angle. Measures from 0-90.
  7. 8. Closed 3D shape. Made of flat polygon regions.
  8. 9. An intersection of 2 non-collinear rays. a square has 4 of them.
  9. 10. Quadrilateral. Both pairs of opposite sides parallel.
  10. 13. Quadrilateral. 1 pair of lines parallel.
  11. 14. Part of a line. Starts at a point.
  12. 15. Commonly an angle. Measures 90-180.
  13. 16. Part of a line. Starts at a point and extends infinitely.