Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


radical square root written as a number under a radical sign
irrational number numbers with decimals that do not end and do not repeat
radical equation an equation that has a variable under a radical sign
right triangle a triangle with one right angle and two acute angles
hypotenuse the side across from the right angle of a right triangle
Pythagorean theorem a formula for finding the length of a side of a right triangle when you know the lengths of the other sides: a2 + b2 + c2
Pythagorean triple three positive whole numbers that satisfy the pythagorean theorem: the numbers can be the measures of the sides of a right triangle.
distance formula a way to find the distance between two points using the Pythagorean theorem
45*-45*-90* triangle a right triangle whose acute angles both measure 45*
30*-60*-90* triangle a right triangle whose acute angles measure 30* and 60*
Created by: noahmather