Geometry

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Across
  1. 3. the outside part or layer of something
  2. 5. The inside measurement of a 3-d shape
  3. 8. A 3-d rectangle
  4. 10. Multiplying length by width
  5. 11. Any shape that is made up of 2 or more geometric shapes
Down
  1. 1. A 3-d triangle
  2. 2. One side of a circle to the other
  3. 4. Adding up all of the sides
  4. 6. The length fully around a circle
  5. 7. The middle to the side of a circle
  6. 9. 3.141592...........