Geometry Vocabulary

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Across
  1. 3. an angle that measures exactly 180 degrees
  2. 6. lines that form square corners and 90 degree angles
  3. 8. a triangle with 3 acute angles
  4. 9. 2D shape with 5 sides
  5. 11. having the same size, shape, and position on both sides of a dividing line
  6. 12. a quadrilateral with opposite sides equal and parallel
  7. 15. a quadrilateral with 1 set of parallel lines
  8. 16. a closed figure formed by 3 or more line segments
Down
  1. 1. a triangle with a right angle
  2. 2. a line with a starting point and continues in one direction without ending
  3. 3. a parallelogram with 4 congruent sides and 4 right angles
  4. 4. a 4-sided polygon
  5. 5. a part of a line that has 2 endpoints
  6. 7. 2D shape with 6 sides
  7. 9. a tool used to measure and draw angles
  8. 10. an angle that measures more than 90 degrees but less than 180 degrees
  9. 12. lines that are equal distance apart and will never intersect
  10. 13. an angle that measures exactly 90 degrees
  11. 14. a straight path that extends without an end in opposite directions