Across
- 1. mental abuse to humans
- 7. a point or line common to lines or surfaces that intersect.
- 10. a two-dimensional doubly ruled surface spanned by two linearly independent vectors.
- 11. a primitive notion that models an exact location in the space,
- 13. Three or more points that lie on the same line
- 14. a point or value that marks the end of a ray or one of the ends of a line segment or interval.
Down
- 2. measure less than 90 degrees
- 3. that the top is directly above the bottom.
- 4. a branch of mathematics that studies the sizes, shapes, positions angles
- 5. oppisate of left
- 6. the point on a line segment or an arc that is equidistant
- 8. a vector from a point to a point
- 9. to divide into two equal parts. to cut or split into two.
- 12. extends in both directions without end
- 15. measure more then 180