Origami Paper Cup

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Across
  1. 2. A four-sided figure with equal sides and right angles.
  2. 4. Origami is creating shapes by _____ paper.
  3. 5. The word in Geometry for equal-sized objects.
  4. 7. The outside surface of the cup.
  5. 10. The Japanese art of folding paper.
  6. 11. Shapes that look the same but are different sizes.
  7. 13. A figure with five straight-line sides.
Down
  1. 1. A figure with three straight-line sides
  2. 3. The space inside of an object like a cup.
  3. 6. A four-sided figure with 2 sides parallel and 2 sides not parallel.
  4. 8. Having the same measure or value.
  5. 9. Lines that are always the same distance apart on a piece of paper.
  6. 12. An angle with a measure of 90 degrees.