crossword puzzle

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Across
  1. 3. Opposites sides are parallel and all sides are equal in length
  2. 5. Opposites sides are parallel and equal in length
  3. 6. Opposite angles are equal in size
  4. 8. An angle that is greater than 90° but less than 180°
  5. 10. An angle that is 180° exactly
Down
  1. 1. Angle that is less than 90°
  2. 2. 2 dimensional closed shaped with four straight sides
  3. 4. An angle that is greater than 180°
  4. 7. The diagonals bisect each other at right angles
  5. 9. Two pairs of adjacent sides are equal in length