Geometry Basics Crossword

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Across
  1. 1. The horizontal axis on the coordinate plane
  2. 3. _______ anlges are two angles that add up to 90 degrees.
  3. 10. Three or more points that do not lie on the same line
  4. 11. Points at the end of a segment or ray
  5. 12. Two lines that intersect at a 90 degree angle
Down
  1. 2. _______ angles are two angles that share a ray or side
  2. 4. The point in the exact middle of a line segment
  3. 5. To cut something into two equal pieces
  4. 6. Two lines in the same plane that never intersect
  5. 7. The steepness of a line on a graph
  6. 8. A common endpoint of two rays or two segments
  7. 9. It is straight and extends forever in both directions