Geometry Crossword Puzzle

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Across
  1. 3. A point where 2 or more curves or lines meet
  2. 6. A three dimensional circle
  3. 7. The measurement of a region's size on a surface
  4. 9. A plane figure made up of line segments connected to form a closed polygonal chain
  5. 10. Two figures or objects are congruent if they have the same shape and size
  6. 12. Mid point of the line segment
  7. 14. An infinitely long object with no depth, width or curvature
  8. 15. A primitive notion that models an exact location in space, and has no length, width, or thickness
Down
  1. 1. A shape similar to a square
  2. 2. A regular quadrilateral with 4 equals sides and angels
  3. 4. A shape with 3 angles and 3 vertices
  4. 5. A 6 sided polygon
  5. 8. The figure formed by two rays
  6. 11. A perimeter of a circle or ellipse
  7. 13. quadrilateral with two pairs of parallel sides