Geometry Vocabulary

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Across
  1. 2. a triangle with two sides equal in length
  2. 3. a quadrilateral with four congruent sides and two pairs of parallel sides; opposite angles are congruent
  3. 8. a triangle with all three sides equal in length and each angle measuring 60 degrees
  4. 9. an angle with a measure greater than 90 degrees but less than 180 degrees
  5. 10. an angle with a measure of exactly 180 degrees
  6. 11. a polygon with four sides and four angles
  7. 12. an angle with a measure greater than 180 degrees but less than 360 degrees
  8. 14. a part of a line connecting two points; it has definite end points
  9. 15. an angle with a measure less than 90 degrees but greater than 0 degrees
  10. 19. a 2-dimensional figure formed by 3 or more sides that meet only at their endpoints; sides can not cross
  11. 21. a quadrilateral with four sides and four right angles; opposite sides are parallel AND congruent
  12. 24. a part of a line that begins at a specific point and extends forever in one direction
  13. 25. a quadrilateral with at least one pair of parallel sides
  14. 26. two lines that intersect at right angles
  15. 27. a quadrilateral with two pairs of parallel sides; opposite sides and opposite angles are congruent
  16. 28. an angle with a measure of exactly 90 degrees
  17. 29. a quadrilateral with four congruent sides and four right angles
  18. 30. Two angles that share a common ray
Down
  1. 1. a triangle with ONE right angle
  2. 4. a triangle with no sides equal in length
  3. 5. opposite pair of congruent angles formed when two lines intersect
  4. 6. lines that never meet; lines that are always the same distance apart
  5. 7. meaning equal in measure or having the exact same length
  6. 13. a two-dimensional object that has no endpoints and continues forever in both directions
  7. 15. the figure formed by two rays, called the sides, sharing a common endpoint called the vertex
  8. 16. two angles with a measurement sum of 180 degrees
  9. 17. two angles with a measurement sum of 90 degrees
  10. 18. a triangle with THREE acute angles
  11. 20. a triangle with ONE obtuse angle
  12. 21. a polygon in which all sides are the same length and all angles have the same meausure
  13. 22. the point at which the rays of angle or sides of a polygon meet
  14. 23. two sides that share a common vertex