Geometry

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Across
  1. 4. A polygon with six sides
  2. 7. distance of the number from zero
  3. 9. a polygon where all of its sides have equal length
Down
  1. 1. A triangle with two sides of equal length
  2. 2. A polyhedron of six faces, each of which is a square
  3. 3. A diagram showing an argument for a conclusion from certain evidence
  4. 5. formed by two rays that are joined at a common endpoint
  5. 6. A line segment drawn through the center of a circle with both endpoints on the circle
  6. 8. one-dimensional and extends without end in two directions