Geometry Crossword

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Across
  1. 3. is the perimeter of a circle or ellipse
  2. 9. A part of a line that has two endpoints
  3. 10. An angle whose vertex is the center of a circle
  4. 12. If extended infinitely, the lines above will never meet.
  5. 13. a polyhedron with two congruent and parallel faces
  6. 14. a precise location or place on a plane
  7. 15. the point where two rays or line segments meet to form an angle
Down
  1. 1. An angle that measures 90 degrees
  2. 2. An angle found on the inside of a shape or object
  3. 4. an angle greater than 90 degrees but less than 180 degrees
  4. 5. a two-dimensional sheet defined by any three points
  5. 6. All the points on the edge of a this are the same distance from the center
  6. 7. lines that would form a right angle if they crossed
  7. 8. A shape with two sides that have the same length.
  8. 11. a collection of points extending along one dimension