Geometry Crossword Puzzle

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Across
  1. 3. a straight line passing from side to side
  2. 6. a straight 1d figure
  3. 11. segments that intersect to form a perfect right angle
  4. 12. total distance around the outside of a 2d shape
  5. 13. (2D) shape made of three or more straight line segments (sides) connected end-to-end, forming vertices
  6. 14. a point where two or more lines meet
Down
  1. 1. a four-sided polygon, meaning it's a flat, closed shape with exactly four straight sides, four vertices (corners), and four angles, whose interior angles always sum to 360 degrees
  2. 2. two-dimensional surface that extends infinitely in all directions
  3. 4. formed by two rays or lines that share a common endpoint, called the vertex
  4. 5. a line from a circles center to its edge
  5. 7. two or more straight lines on the same plane that are always the same distance apart and never intersect, no matter how far they are extended
  6. 8. a simple, closed, two-dimensional polygon with three straight sides (edges), three corners (vertices), and three interior angles that always sum to 180 degrees
  7. 9. a closed, two-dimensional shape made of all the points in a plane that are equidistant from a central point
  8. 10. measure of the two dimensional space enclosed by a flat shape
  9. 11. a location in space with no size or dimension