Royals Geometry Crossword

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Across
  1. 2. The point that divides a segment into two congruent segments.
  2. 3. An angle measuring less than 90 degrees.
  3. 7. A rule that is accepted without proof
  4. 8. A part of a line that starts at an endpoint and extends infinitely in one direction.
  5. 9. Points or lines that lie in the same plane.
  6. 11. Two angles that share a vertex and a side, but no interior points.
  7. 13. A part of a line consisting of two endpoints and all points between them.
  8. 14. The common endpoint of an angle.
  9. 16. A flat surface that has no thickness and extends forever.
  10. 17. A unit of angle measure.
  11. 18. A pair of opposite angles formed by intersecting lines.
Down
  1. 1. A straight path that has no thickness and extends forever in opposite directions.
  2. 4. Points that lie on the same line.
  3. 5. Figures that have the same size and shape.
  4. 6. An angle measuring between 90 and 180 degrees.
  5. 8. An angle measuring exactly 90 degrees.
  6. 10. A precise location or place on a plane.
  7. 12. Two angles whose measures have a sum of 90 degrees.
  8. 13. Two angles whose measures have a sum of 180 degrees.
  9. 15. An angle measuring exactly 180 degrees.