math vocab

6. an equality relating one mathematical expression A to another mathematical expression
7. a part of a line that has a fixed starting point but no end point
8. a 3d square
11. the diastance around a circle
14. the distance of a number from zero
19. a letter that serves as a place holder
20. a relation which makes a non-equal comparison between two numbers
21. the figure formed by two rays

1. 4 is the ______ of -4
2. a circumstance, fact, or influence that contributes to a result
3. A geometric form consisting of any combination of points, lines, or planes
4. the length across a circle from one side to the other passing through the center
5. a _____ of a circle or sphere is any of the line segments from its center to its perimeter
9. divide something or give a share or part of something
10. the amount of space enclosed in a 3d shape
12. A _____ represents a part of a whole or, more generally, any number of equal parts
13. a finite combination of symbols that is well-formed according to rules that depend on the context
15. a statement that asserts the equality of two expressions
16. the amount of space inside a 2d space.
17. a number whose whole number part and the fractional part is separated by a ______ point
18. a line that is bounded by two distinct end points