# math

## 20 terms · vocab

### chord

line segment whose endpoints are any two points on a circle

### complementary

sum of angles that equals 90 degrees

### circumference

the perimeter of a circle

### congruent

figures that have the same size and shape

### corresponding angles

Angles formed by a transversal cutting through 2 or more parallel lines that are in the same relative position.

### diameter

The distance across a circle through its center.

### equilateral

A polygon with all sides congruent

### factor

any of the numbers that form a product when multiplied together

### integer

all the whole numbers and their opposites. no fractions

### intersecting lines

lines that cross at one point

### irrational numbers

numbers that can not be written as fractions

### isosceles

having two equal sides

### mean

the arithmetic average, obtained by adding the scores and then dividing by the number of scores.

### median

The middle number in a set of numbers that are listed in order

### mode

The number that occurs most often in a set of data

### multiple

the product of a given number and any whole number

### non-negative

not negative; a number that is either zero or positive

### non-positive

not positive; a number that is either zero or negative

### parallel

lines that will never meet, no matter how long you stretch them (like railroad tracks!)

### parallelogram

a quadrilateral with 2 pairs of parallel sides