Geometric Shapes and Properties

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Across
  1. 2. A polygon with one or more interior angles greater than180°
  2. 4. It has one end point, and it extends infinitely in the direction of a second point.
  3. 5. A five-sided polygon
  4. 9. Two angles that add up to 90°
  5. 10. An angle that has a measure of greater than 90° but less than 180°
  6. 12. A quadrilateral with both pairs of opposite sides parallel.
  7. 15. An eight-sided polygon
  8. 20. A quadrilateral with four right angles.
  9. 21. Has only one dimension: length. It continues forever in two directions
Down
  1. 1. A flat shape with four straight sides
  2. 3. a flat, two-dimensional object.
  3. 6. A quadrilateral with four right angles and four congruent sides
  4. 7. An angle that measures between 0°and 90°
  5. 8. The angles opposite each other when two lines cross
  6. 11. Two angles that add up to 180°
  7. 13. A polygon with four congruent sides.
  8. 14. A polygon with all its interior angles less than 180°
  9. 16. A quadrilateral with exactly one pair of opposite sides parallel
  10. 17. A line that passes through two other lines that are parallel to each other
  11. 18. A quadrilateral that has two distinct pairs of consecutive equilateral sides.
  12. 19. A ten-sided polygon