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

Geometry Def.

Point Infinitely small location in space
Line Infinitely long, infinitely thin straight path
Plane Infinitely long, infinitely wide flat surface
Line Segment Part of a line with two endpoints
Ray Part of a line with one endpoint
Axiom A (mathematical) statement which we accept as true without proof (because there is NO counterexample)
Collinear Two or more points that lie on a common line
Parrallel Two (or more) lines are parallel if they never intersect AND are on the same plane
Skew Lines Two lines not in the same plane, which never intersect
Angle Two rays with a common endpoint (vertex)
(One) Degree 1/360 of a complete rotation
(Geometric) Intersection (All) points in common
Perpendicular Two lines (or rays, or segments) which intersect at 90 degrees
Adjacent Angles Two angels which share a common ray, vertex and do not overlap
Theorem A mathematical statement which we can prove to be true
Vertical Angles Two non-adjacent angles formed by two intersecting lines
Transversal A line which intersects two given lines in a place
Corresponding Angles 1) On SAME side of transversal, 2) one interior, one exterior, 3) not adjacent
Alternate Interior Angles 1) Opposite sides of the transversal, 2) both interior, 3) not adjacent
Created by: jdg33