Shapes and Angles

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Across
  1. 2. An angle of exactly 90 degrees
  2. 4. A shape with three sides
  3. 6. A four sided shape with one pair of parallel sides
  4. 7. A four sided shape with two pairs of parallel sides
  5. 8. A triangle with no equal sides
  6. 9. A triangle with two equal sides
  7. 12. Any four sided shape
  8. 14. An angle less than 90 degrees
Down
  1. 1. .......... opposite angles are equal
  2. 3. A four sided shape with two pairs of equal sides
  3. 5. A triangle with three equal sides
  4. 10. An angle of between 90 and 180 degrees
  5. 11. A four sided shape with all equal sides
  6. 13. An angle of more than 180 degrees