Tyler's Geometry Crossword

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Across
  1. 4. This is another way of saying equal. We use this in geometry.
  2. 5. This has opposite sides congruent. It also has angles that equal 90 degrees.
  3. 6. A quadrilateral that has one set of opposite angles that are congruent. It also has one set of adjacent congruent sides.
  4. 9. This quadrilateral only has one set of parallel lines. Consecutive angles are supplementary.
  5. 10. A quadrilateral with all congruent sides. All angles equal 90 degrees.
  6. 11. This has two endpoints. It extends in both directions forever.
  7. 13. A polygon that has congruent sides. Opposite angles are congruent.
  8. 14. A figure that is flat. It is made up of lines and points.
  9. 15. Two lines that will never meet. They lie on the same plane.
  10. 16. A polygon that is two-dimensional. It only has four sides.
  11. 18. Two angles when added together to give you 180 degrees. The angles do not have to be together.
Down
  1. 1. This has two endpoints. It does not extend.
  2. 2. Two points that lie on the same line.
  3. 3. The point that is in the middle.
  4. 7. What happens when two lines cross each other.
  5. 8. Opposite sides are congruent. Opposite sides are parallel.
  6. 12. If you use two of these, you get a line. This is what is the basis of geometry.
  7. 14. A flat surface that extends without an end. It is made up of lines and points.
  8. 17. Measured in degrees, this is made up of two rays and an endpoint.