Across
- 4. π
- 6. is a piece or part of a line having two endpoints.
- 7. formed by two rays
- 8. lines in a plane that are always the same distance apart and never intersects.
- 10. rad
- 11. a straight one- dimensional figure that has no thickness and extends endlessly in both directions
- 12. is any smooth curve joining two points.
- 14. deg
Down
- 1. an angle measured exactly 90 degrees.
- 2. Δ
- 3. ″
- 4. are line that intersect at a right (90 degrees) angle.
- 5. a part of a line that has a fixed starting point but no end point.
- 9. ′
- 13. ≅