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