Geometry

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Across
  1. 2. a branch of mathematics concerned with shapes, space, distance, and figures
  2. 3. a shape with 4 sides, the top and bottom are parellel
  3. 6. a shape with eight sides
  4. 9. a shape with 3 sides
  5. 10. the shape you get when you cut straight through an object
  6. 12. a shape with 4 equal sides
  7. 13. number of unit squares that cover the surface of a closed figure
  8. 14. a three-dimensional figure with multiple equal triangles along the base
Down
  1. 1. perimeter of a circle
  2. 4. a shape with five sides
  3. 5. a figure formed by two rays, measured in degrees
  4. 7. a three-dimensional figure composed of two circle and a rectangle
  5. 8. a round thingy
  6. 11. ratio that defines the relation between figures
  7. 12. Circle half of a circle