Create an account
Two congruent angles in matching positions on two parallel lines cut by a transversal.
Alternate Interior Angles
Two congruent angles that lie within two parallel lines and on opposite sides of the transversal.
Alternate Exterior Angles
Two congruent angles that lie outside two parallel lines and on opposite sides of the transversal.
Same-side Interior Angles
Two supplementary angles that lie within two parallel lines and on the same side of the transversal.
Same-side Exterior Angles
Two supplementary angles that lie outside two parallel lines and on the same side of the transversal.
Covering a plane (piece of paper) with repeating pattern of one or more shapes with no gaps or overlaps.
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!Reload
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