geometry crossword

12345678910111213141516171819
Across
  1. 2. an angle in a circle with its vertex on the circle
  2. 7. The intersection of two sets has only the elements common to both sets
  3. 9. is from the center of the circle to the edge of a circle
  4. 12. arc less than 180 degrees
  5. 14. Two angles whose measures have a sum of 90
  6. 15. a plane figure with four equal straight sides and four right angles.
  7. 18. two sides are the same size
  8. 19. two angles that are next to each other
Down
  1. 1. arc greater than 180 degrees
  2. 3. when their measures add to 90 degrees
  3. 4. – opposite sides are parallel
  4. 5. and angle in a circle with its vertex at the center of a circle
  5. 6. angle 90 degrees
  6. 8. Two angles formed by intersecting lines and facing in the opposite direction
  7. 10. lines are 2 lines that intersect and form 2 right angles
  8. 11. parallelograms with right angles
  9. 13. a line segment that has both endpoints on a circle
  10. 16. is a line segment that connects to points on the circle that passes through the center
  11. 17. The set made by combining the elements of two sets.