Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

perfect square

a square of a whole number

square root

one of the two equal factors of a number

radical sign

the symbol for square root.

scalene triangle

a triangle with no congruent sides

isosceles triangle

a triangle with at least two congruent sides

equilateral triangle

a triangle with three congruent sides

acute triangle

a triangle with all its angles measuring less than 90 degrees

obtuse triangle

an angle whose measure is greater than 90 degrees but less than 180 degrees

right triangle

a triangle containing a right angle


in a right triangle, the sides that include the right angle; in an isosceles triangle, the pair of congruent sides


in a right triangle, the side opposite the right angle

Pythogorean Theorem

in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording