Angle Relationships

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Across
  1. 4. a measure of angles
  2. 6. equal in size and shape
  3. 8. a tool used to measure angles
  4. 9. a triangle with sides that are all the same length
  5. 11. an angle measuring more than 90°
  6. 12. a pair of angles that adds up to 180°
  7. 14. angles that are across from each other and congruent
  8. 15. an angle measuring exactly 90°
  9. 16. a triangle containing one obtuse angle
  10. 18. an angle whose vertex is placed in the middle of a circle
Down
  1. 1. a point (or near) the middle of a line
  2. 2. a shape formed by two rays or lines extending from a vertex
  3. 3. a corner or point where lines or rays meet
  4. 5. a line with two end points
  5. 6. a pair of angles that adds up to 90°
  6. 7. a triangle with two sides that are the same length
  7. 10. a continuous extent of length that goes on forever in both directions
  8. 12. an angle whose measure is exactly 180°
  9. 13. a triangle where no sides are equal lengths
  10. 17. a line with a start point but no end point