**1.**angle an angle that measures greater than 0 degrees and less than 90 degrees**4.**plane a plan that is divided into four regions by a horizontal line**6.**a prism with six square faces**7.**a number or expression that is multiplied by another number or expression to get a product**8.**angles two angles who measures have a sum of 90 degress**10.**a member of the set of whole numbers and their opposites**11.**the sum of the side lengths of a closed plane figure**12.**the number that indicates how many times the base in a power is used as a factor**13.**lines lines in the same plane that do not intersect**15.**interesecting to form 90 degree angles**17.**graph a graph that uses vertical or horizontal bars to display data**18.**the number of nonoverlapping unit squares of a given size that will exactly cover the interior of a plane figure**19.**a relation in which every input is paired with exactly one output**21.**inequality two inequalities that are combined into one statement by the word and or or**22.**value the absolute value of x is the distance, from zero to x on a number line**23.**information gathered from a survey or experiment

**1.**expression an expression that contains at least one variable**2.**to find the value of an algebraic expression by substituting a number for each variable and simplifying by using the order of operations**3.**a monomial or a sum or difference of monimials**5.**a mathematical statement that two expressions are equivalent**8.**the distance around a circle**9.**a polynomial with three terms**14.**the process of writing a number or algebraic expression as a product**15.**form y-y=m(x-x)**16.**a mathematical phrase that contains operations, numbers, and/or variables.**17.**a polynomial with two terms**20.**a literal equation that states a rule for a relationship among quantaties