Geometry Vocab

3. branch of mathematics that deals with shapes, sizes, and the properties of space
5. angle with a measure of 90 degrees
8. Consists of two endpoints and all the points between them
11. The point that divides a segment into two congruent segments
13. The absolute value of the difference of two coordinates on a line
14. used to determine whether a point lies on a line segment
15. Has one dimension. It is represented by a line with two arrowheads, but it extends without end

1. Terms that can be described using known words
2. Words that do not have formal definitions, but there is agreement about what they mean
4. number that corresponds to a point on a line
6. A flat surface made up of points that has two dimensions and extends without end and is represented by a slanted four-sided figure
7. angle with a measure of 180 degrees
9. A location in space that is represented by a dot and has no dimension
10. a line with a single endpoint or point of origin that extends infinitely in one direction
12. The set of points two or more geometric figures have in common is their intersection