Math Vocab Review

Front

an angle that equals 90 degrees

Back

right angle

Front

a symbol for an unknown value

Back

variable

Front

A mathematical sentence stating that two expressions are equal.

Back

equation

Front

What is this called? (symbol)

Back

equal sign

Front

a polygon with five sides

Back

pentagon

Front

an angle that is less than 90 degrees

Back

acute angle

Front

an angle that is greater than 90 degrees but less than 180 degrees

Back

obtuse angle

Front

a straight angle measures how many degrees?

Back

180 degrees

Front

the distance around a circle

Back

circumference

Front

the amount of space inside a three-dimensional object

Back

volume