Geometry Vocabulary

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Across
  1. 4. a polygon with four sides and four angles
  2. 5. a polygon with four equal length sides
  3. 6. a polygon with two sets of parallel sides
  4. 8. an endless flat surface
  5. 12. an angle that measures 90 degrees
  6. 13. identical in size and shape
Down
  1. 1. a polygon with four right angles
  2. 2. a polygon with one set of parallel sides
  3. 3. lines that never cross or intersect
  4. 7. an invisible line that divides a shape into two identical halves
  5. 9. a closed figure made of straight lines
  6. 10. characteristics of a shape
  7. 11. where two sides of a shape meet