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

Algebra 1 Semester I

Know your equations and terms.

AA Similarity Two pairs of corresponding angles are the same on 2 triangles. The triangles are considered similar.
Triangle Inequality Relationships for the 3 lengths in order to form a triangle.
Acute Sum of squares of lengths of 2 shorter sides is greater than square of longest side.
Obtuse Sum of squares of lengths of 2 shorter sides is less than square of longest side.
Right Sum of squares of lengths of the two shorter sides is equal to square of longest side.
Pythagorean Theorem Formula (leg 1)²+(leg 2)²=(hypotenuse)²
Real Number Both rational and irrational number.
Graph Associations (Types of) Positive-Negative-None Linear-Non Linear Strong-Weak
Area of Circle Formula π×r²
Area of a Square or Rectangle Formula L×W
Area of Triangle Formula b×h÷2
Area of Trapezoid Formula [(b¹+b²)÷2]h
Created by: Llamas^_^