Geometry

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Across
  1. 3. _____xr2
  2. 4. e.g., globe or a ball
  3. 5. A three dimensional object where all sides are equal
  4. 7. Measurement across the circle going through the center
  5. 9. The quantity of 3 dimensional space enclosed by a 3 dimensional object
  6. 10. The longest side of a right triangle
  7. 12. The space inside of a 2 dimensional object
  8. 13. Distance from the edge of the circle to its center
Down
  1. 1. e.g. a paper towel roll, a straw, water pipes
  2. 2. the side on a 2D object or a face of a 3D object that is perpendicular to the height.
  3. 3. The distance around a 2 dimensional object
  4. 6. Third dimension used in 3 dimensional objects
  5. 8. Has one third of the volume of a cylinder
  6. 11. One third x Area of the Base x height