Geometry Crossword Puzzle

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Across
  1. 5. the space (usually measured in degrees) between two intersecting lines or surfaces at or close to the point where they meet.
  2. 6. the measurement or extent of something from end to end
  3. 7. same size sides shape
  4. 9. current math unit
  5. 12. a figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square.
  6. 13. a parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides.
  7. 16. three pointed shape
  8. 17. the extent or measurement of a surface or piece of land.
Down
  1. 1. a plane figure with at least three straight sides and angles, and typically five or more.
  2. 2. a four-sided plane rectilinear figure with opposite sides parallel.
  3. 3. a symmetrical three-dimensional shape, either solid or hollow, contained by six equal squares.
  4. 4. the amount of space occupied by a three-dimensional figure as measured in cubic units
  5. 8. a six-sided shape
  6. 10. the measurement or extent of something from side to side.
  7. 11. 5-sided shape
  8. 14. an eight-sided shape
  9. 15. the measurement from base to top