Geometry Vocab

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Across
  1. 4. a triangle with no equal sides
  2. 6. an angle that is exactly 180°
  3. 9. a triangle with two equal sides
  4. 11. angles that are across from each other; they do not share a side or vertex
  5. 14. the angles on the outside of a figure when the sides are extended
  6. 16. a transformation that moves a figure in a straight line without turning or flipping
  7. 18. a 5-sided polygon
  8. 19. a 6-sided polygon
  9. 21. an angle that is less than 90°
  10. 25. A triangle with one obtuse angle
  11. 28. A triangle with all acute angles
  12. 29. contains two sets of parallel sides
  13. 31. two angles that add up to 90°
  14. 32. a four sided polygon; angles total 360°
  15. 33. a word meaning equal or same; it is used to describe figures, sides, and angles
  16. 34. a transformation that moves a figure by flipping it across a line
  17. 35. A triangle with one right angle
Down
  1. 1. lines that cross at a point and form 90°angles
  2. 2. a point where two or more lines come together; also called acorner on a polygon
  3. 3. a transformation that moves a figure by turning it
  4. 5. an 8-sided polygon
  5. 7. two angles that are formed with a common side
  6. 8. a quadrilateral that contains one set of parallel sides; also contains two opposite congruent sides
  7. 10. a figure has this when can be turned around a point and look exactly the same as its original image after some rotating
  8. 11. an angle that is more than 90° and less than 180°
  9. 12. contains two sets of parallel sides that form four 90 ° angles; all sides are congruent
  10. 13. a figure has this when a line can divide it into two congruent parts
  11. 15. a quadrilateral that contains on set of parallel sides and contains two right angles
  12. 17. two angles that add up to 180°
  13. 20. the angles inside of a figure; in a triangle, these add up to 180°
  14. 22. a triangle with three equal sides
  15. 23. contains two sets of parallel sides that form four 90 ° angles
  16. 24. an angle that is exactly 90°
  17. 26. lines that stay same distance from each other forever and never intersect
  18. 27. a line that cuts across a figure connecting two vertices that are not adjacent
  19. 30. lines that cross at a point
  20. 34. contains two sets of parallel sides that are all congruent