Across
- 1. starts at one endpoint and continues forever
- 7. angles that sum to 90 degrees
- 9. the point where the rays of an angle meet
- 10. when lines or planes intersect at right angles
Down
- 2. a 180 degree angle
- 3. more than 90 degree angle
- 4. formed by two rays or lines with a common endpoint
- 5. angles that sum to 180 degrees
- 6. less than 90 degree angle
- 8. a 90 degree angle