Geometry

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Across
  1. 2. when folded two halves match exactly
  2. 4. shape with 4 sides
  3. 5. angle that measures less than 90 degrees
  4. 7. angle that measures more than 90 degrees
  5. 8. always the same distance apart
  6. 11. intersecting at right angles
Down
  1. 1. distance around a figure
  2. 3. measure of 90 degrees
  3. 6. of the same shape and size
  4. 9. closed shape with 3 or more sides
  5. 10. sq units inside a shape