Geometry Terms

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Across
  1. 3. flat surface of a solid
  2. 5. a closed curved line around a central point
  3. 9. total measurement of all edges of a shape
  4. 10. distance that surrounds a circle
  5. 12. polygon with three edges and three vertices
  6. 13. the region around the shape of an object
  7. 14. any angle greater than 90 degrees
Down
  1. 1. the middle number in a list of numbers
  2. 2. a measure for angles
  3. 4. angle less than 90 degrees
  4. 6. solid shape with six square faces
  5. 7. symmetrical and round in slope
  6. 8. straight line passed through the center of a circle
  7. 9. infinite side-by-side lines that never intersect
  8. 11. when two vertices meet