Angles and Shapes

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Across
  1. 4. four sided shape
  2. 9. biggest angle
  3. 11. endpoint
  4. 13. shape with all sides the same and opposite sides are parallel
  5. 15. two angles that equal 90 degrees
  6. 19. triangle with no equal sides
  7. 20. 90 degree angle
  8. 21. two sides that share a common endpoint
Down
  1. 1. less than 90 degree angle
  2. 2. shape with exactly one pair of opposite sides parallel
  3. 3. two angles that equal 180 degrees
  4. 5. most common unit of measure for angles
  5. 6. triangle with 2 sides alike
  6. 7. shape that is 180 degrees
  7. 8. when two lines intersect, they form two pairs of opposite angles
  8. 10. two angles that share a common vertex and one ray
  9. 12. same
  10. 14. shape with four right angles
  11. 16. shape with opposite sides congruent, opposite sides parallel
  12. 17. triangle with all sides alike
  13. 18. shape with opposite sides congruent, all angles right angles