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absolute value

The distance from a number to zero on a number line. Written as I4I the absolute value of-4 is 4.

arc

An unbroken part of a circle that is named by it's endpoints.

associative property

A rule that states that for all real numbers A, B, C; the sum or product is always the same, regardless of the groupings. a+b+c=a+(b+c)

algebra

Math language using variables.

distributive property

A rule that states that if you multiply a sum by a number, you will get the same result if you multiply addend and then add them. 4**(2+3)=4**2+4*3

common denominator

A common multiple of the denominator of two or more fractions.

exponent

The number that indicates how many times the base is used as a factor.

isosceles triangle

A triangle with at least two congruent sides.

half hour

30 minutes

experimental probability

The ratio of the number of times an event occurs to the number of trials. i.e roll a 6 on a number cube.

least common denominator

The least common multiple of two or more denominators.

midpoint

The point that divides a line segment into two congruent line segments.

net

An arrangement of two-dimensional figures that can be folded to form a three dimensional figure.

pi

The ratio of the circumference of a circle to the length of its diameter. (3.14)

range

The difference between the greatest and least values in a data set.

obtuse triangle

A triangle containing one obtuse angle.

right triangle

A triangle with one 90 degree angle.

scale

The ratio used to enlarge or reduce similar figures. i.e. scale miles on a map

scalene triangle

A triangle with no congruent angles.

sum of measures

The result of when two or more angles are added.

supplementary angles

Two angles whose measure have a sum that equals 180 degrees.

thoretical probability

A ratio of the number of equally likely outcomes in an event to the total number of possible outcomes. i.e. Your chances of tossing heads on a coin toss.

survey

An evaluation tool, often used to collect data that can be summarized.

tax

An amount of money used to pay for shared services and expenses.