Math stuff

2. corresponding in size or amount to something else.
4. a letter that represents a number
5. an extra amount to pay for something
7. A piece of something
10. a whole number; a number that is not a fraction.
14. the space (usually measured in degrees) between two intersecting lines or surfaces at or close to the point where they meet.
15. the side across from a right angle
16. the size, length, or amount of something, as established by measuring.
17. a relationship or expression involving one or more variables.
19. analogous or equivalent in character, form, or function; comparable.

1. not expressible as a ratio of two integers
3. How to find a missing side of a triange.
6. a number which produces a specified quantity when multiplied by itself.
8. identical in form; coinciding exactly when superimposed.
9. a part of an equation that can be alone
11. multiplied by itself.
12. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8.
13. a part of an equation that needs another part
18. a line that crosses to parallel lines
20. one part in every hundred