Chord

 A line segment whose endpoints are on a circle[image]

Circumference 

The distance around a circle

[image]

Composite number

A whole number having more than two factors

Ex: 4,6,8,10,12,14,16,18, etc.

  A line segment that has endpoints on a circle and passes through the center of the circle.

[image]

Expanded notation

  A way to write numbers that shows the value of each digit

(e.g., 4372 = 4000+300+70+2).

Greatest common factor (GCF)

The largest factor that 2 or more numbers have in common. 

Ex. The GCF of 24 and 36 is 12 

Heptagon

A polygon with 7 sides

[image]

Histogram

A bar graph in which the labels for the bars are numerical intervals

[image]

Hypotenuse

The longest side of a right triangle (which is also the side opposite the right angle)

[image]

The least common multiple of the denominators in two or more fractions

Ex. The LCD of 3/8 and 5/6 would be 24

Least common multiple (LCM) 

 The smallest number, other than zero, that is a common multiple of two or more numbers.

Ex. The LCM of 4 and 16 is 16

Leg (of a right triangle)

Either of the two sides that form the right angle in a right [image]

A graph showing the frequency of data on a number line[image]

    Nonagon

A polygon with 9 sides.

[image]

Plane

  A flat surface that extends infinitely in all directions.

 [image]

Prime number

A whole number that has exactly two factors, 1 and itself

Ex. 3,5,7,11,13,17,19,etc.

Quadrants

The four regions of a coordinate plane that are separated by the axes[image]

Radius

   A line segment that has one endpoint on a circle and the other endpoint at the center of the circle

[image]

Range

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

                  Ex. If a peice of data had the numbers 6,7,8,9,10 and 11 bees, the range bould be 5 bees.

Rate

     A ratio that compares two quantities having different units

(e.g., 95 miles in 2 hours)

Ratio

A comparison of two numbers using division.

Ex. 5/7

Regular polygon

A polygon that has all sides congruent and all angles congruent[image]

Repeating decimal

A decimal that has a repeating sequence of numbers after the decimal point.  

Ex. 0.3

Similar polygons

Polygons that have the same shape, but not necessarily the same size.  Corresponding sides of similar polygons are proportional

[image]

Straight angle

An angle with a measure of 180º

[image]

Terminating decimal

A decimal that contains a finite number of digits

Ex.  1.2973

Transformation

The moving of a figure by a translation (slide), rotation (turn) or reflection (flip)

[image]

Unit price

The price of a single item or amount

(e.g., $3.50 per pound)

Unit rate

A rate with the second term being one unit

(e.g., 50 mi/gal, 4.5 km/sec)

Venn diagram

     A diagram that shows relationships among sets of objects.

[image]

Whole number

Any of the numbers

Ex. 0, 1, 2, 3, 4, 5, … (and so on)

The horizontal number line on a coordinate plane

[image]

Y-axis