Geometry Puzzle

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Across
  1. 3. two lines that meet at right angle
  2. 5. a polygon that has equal sides and angles
  3. 6. 5-sided polygon
  4. 8. an angle between 180 and 360 degrees
  5. 10. 8-sided shape
  6. 12. an angle between 90 and 180 degrees
  7. 14. lines that will never meet
  8. 15. a special type of quadrilateral that has equal and parallel opposite sides.
Down
  1. 1. 10-sided polygon
  2. 2. where two lines cross
  3. 4. where 2 lines meet. the point of an angle or corner
  4. 7. an angle less than 90 degrees
  5. 8. a special type of a parallelogram whose all sides are equal.
  6. 9. any 4-sided polygon
  7. 11. shapes with many sides
  8. 13. 6-sided polygon