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


Diagonals are congruent Rectangle Square Isoceles Trapezoid
both pairs of opposite sides are parallel Parallelogram square rectangle rhombus
exactly one pair of opposite sides are parallel Trapezoid Isoceles Trapezoids
all four sides are congruent Rhombus Square
all four angles are congruent Rectangle Square
Each diagonal bisects two angles of the polygon Rhombus Square
One pair of opposite angles are congruent Kite
Both pairs of opposite angles are congruent Parallelogram Square Rectangle Rhombus
Diagonals bisect each other Parallelogram Square Rectangle Rhombus
Diagonals are perpendicular Square Kite Rhombus
Parallelograms-angles opposite angles are congruent
Parallelograms-sides opposite sides are congruent
Parallelograms-diagonals bisect each other
Rhombus-anlges are bisected by the diagonals
Rhombus-diagonals are perpendicular to each other
Rectangle-diagonals are congruent
Squares-angles are bisected by the diagonals
Squares-diagonals are congruent and perpendicular
Isoceles Trapezoid-angles base angles are congruent
Isoceles Trapezoid-diagonals are congruent
Kite-diagonals are perpendicular
Kite-shorter diagonal is bisected
Kite-angles one pair of bisected angles between the non congruent sides
Kite-angles One pair of congruent angles between the congruent sides
Kite-sides Top and bottom sides are congruent
Created by: MelMarWar