Geometry Crossword Puzzle

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Across
  1. 4. lines/are noncoplanar lines they will not intersect.
  2. 7. angle/angle whose measure is 180 degrees.
  3. 11. of 3 or more coplanar segments that meet only at endpoints such that at most two segments meet at one endpoint and each segment meets exactly two other segments.
  4. 13. set of points which has infinite length but no width or height. A line is named by a lower case letter or by any two points on the line.
  5. 14. triangle/triangle with no sides congruent.
  6. 16. angles/two angles whose sum is 180 degrees.
  7. 20. set of points that has infinite length and width but no height. We name a plane with a capital letter.
  8. 21. all sides congruent and all four right angles.
  9. 22. triangle/triangle with all sides congruent.
  10. 23. quadrilateral with both pairs of opposite sides parallel.
  11. 25. triangle/triangle that has all acute angles.
  12. 28. /quadrilateral with exactly one pair of opposite sides parallel.
  13. 30. lines/two lines are parallel if they are coplanar and do not intersect.
Down
  1. 1. triangle/triangle with a right angle.
  2. 2. of a triangle/segment from the vertex of a triangle to the midpoint of the opposite side.
  3. 3. triangle/triangle with at least two sides congruent.
  4. 5. triangle/ triangle with all angles congruent.
  5. 6. lines/two lines that intersect to form right angles.
  6. 8. figure formed by three segments joining three noncollinear points. Each of the three points is a vertex of the triangle and the segments are the sides.
  7. 9. triangles/two triangles are congruent if corresponding sides are congruent and corresponding angles are congruent.
  8. 10. bisector/ray that divides an angle into two congruent adjacent angles.
  9. 12. parallelogram with consecutive sides congruent.
  10. 15. of mathematics that deals with points, lines, planes and solids and examines their properties.
  11. 17. no size; length, width, or height. It is represented by a dot and named by a capital letter.
  12. 18. angles/two angles whose sum is 90 degrees.
  13. 19. angles/the non-adjacent angles formed by two intersecting lines.
  14. 24. parallelogram with a right angle.
  15. 26. polygon/polygon which is equilateral and equiangular.
  16. 27. angles/two coplanar angles with a common vertex and a common side between them
  17. 29. triangle/triangle with an obtuse angle.