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Across
  1. 4. : A triangle with no sides the same length
  2. 5. : An angle that measures exactly 90 degrees
  3. 7. : An angle that measures more than 90 degrees and less than 180
  4. 11. : A straight path made when connecting 2 or more points
  5. 12. : Length x width
  6. 13. : A 4-sided polygon with four equal sides
  7. 15. : A flat surface
  8. 17. : Lines that intersect at a right angle
  9. 18. : The distance around a closed plane figure/polygon
  10. 19. : a 4-sided polygon with opposite sides parallel
Down
  1. 1. : A triangle with all sides the same length
  2. 2. : An angle measuring less than 90 degrees
  3. 3. : The point where two sides of an angle or polygon meet
  4. 6. : A triangle with at least 2 sides the same length
  5. 8. : A 3-sided polygon
  6. 9. : Triangle with one right angle
  7. 10. segment : A straight path of points have 2 endpoints
  8. 14. : A 4-sided polygon with four equal sides and 4 right angles
  9. 16. : Figures with the same shape but not always the same size