8th Grade Math Vocabulary #4

Front

Irrational numbers

Back

are non-terminating decimals, non-repeating decimals, and includes pi.

Front

Slope

Back

steepness of a line, rise over run.

Front

Rotation

Back

turns.

Front

Translation

Back

slides.

Front

Area of a Circle

Back

A = πr², where A is the area and r is the radius.

Front

Terminating Decimal

Back

A decimal that has a finite number of digits.

Front

Repeating Decimal

Back

A decimal that has one or more digits that repeat infinitely.

Front

Pi (π)

Back

A mathematical constant approximately equal to 3.14, representing the ratio of a circle's circumference to its diameter.

Front

Rise over Run

Back

The ratio of the vertical change to the horizontal change in a slope.

Front

Perimeter of a Rectangle

Back

P = 2(l + w), where l is length and w is width.