Algebra Crossword

2. the distance around something
5. a quantity which during a calculation is assumed to vary or be capable of varying in value
9. the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations
11. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
13. a collection of symbols that jointly express a quantity
14. related to another so that their product is one
19. an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable
20. a whole number; a number that is not a fraction

1. an algebraic expression of the sum or the difference of two terms
3. of the root of a number or quantity
4. relating to Pythagoras' theorem that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides
6. an algebraic expression consisting of one term
7. the continuous line forming the boundary of a closed geometric figure
8. a number or quantity that when multiplied with another produces a given number or expression
10. a rational number
12. each of the quantities in a ratio, series, or mathematical expression
15. an irrational number
16. an algebraic expression of three terms
17. to find an answer
18. a quantity or parameter that does not change its value whatever the value of the variables, under a given set of conditions