math vocab

3. a straight one-dimensional figure having no thickness and extending infinitely in both directions.
4. two-dimensional doubly ruled surface spanned by two linearly independent vectors. ... For every set of points in the plane
5. in the same plane.
6. a location on a graph
8. The part of a line that connects two points. ... Adding the word "segment" is important, because a line normally extends in both directions without end
10. (of points) lying in the same straight line.
14. occurs when a line is drawn to divide a shape in halves
16. a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).
17. A line which starts at a point with given coordinates, and goes off in a particular direction to infinity, possibly through a second point.
18. to divide into two equal parts
19. the shape and relative arrangement of the parts of something.
20. the quality of being made up of exactly similar parts facing each other or around an axis.

1. A point on a line segment that divides it into two equal parts
2. a shape with the same on both sides of a line drawn down the middle.
7. halfway point of a line segment
9. an object is rotated around a center point (turned) a number of degrees and the object appear the same.
11. the imaginary line where you could fold the image and have both halves match exactly.
12. a bar with one accurately straight edge, used for testing whether something else is straight.
13. instrument used for drawing circles and arcs.
15. two dots that end a line segment