Across
- 3. divides a line segment or angle into two equal pieces
- 4. two lines that never intersect
- 6. a statement we accept as true
- 7. and angle less than 90 degrees
- 9. a line segment joining the center of a circle with a point on the circle
- 10. the non-adjacent angles formed by intersecting lines
- 12. and angle larger than 90 degrees but less that 180 degrees
- 13. a line segment joining tow point on a circle and passing through the center
Down
- 1. angles that add to 180 degrees
- 2. the set of all points at a gaven distance from a given point
- 4. two lines or line segments that intersect at a right angle
- 5. a part of a circle
- 8. a proven mathematical statement
- 11. a postulate but more universally used