Advertisement Upgrade to remove ads

have the same size and shape.

Congruent -

segments that have equal lengths.

Congruent segments -

point that divides the segment into two congruent segments.

Midpoint of a Segment -

line, segment, ray, or plane that intersects the segment at its midpoint.

Bisector of a Segment -

angles that have equal measure.

Congruent Angles -

two angles in a plane that have a common vertex and a common side but no common interior points.

Adjacent Angles -

ray that divides the angle into two congruent adjacent angles.

Bisector of an Angle -

two angles whose measures have the sum 90.

Complementary Angles -

two angles whose measures have the sum 180.

Supplementary Angles -

two angles such that the sides of one angle are opposite rays to the sides of the other angle.

Vertical Angles -

coplanar lines that do not intersect.

Parallel Lines -

noncoplanar lines that are neither parallel or intersecting.

Skew Lines -

line that intersects two or more coplanar lines in different points.

Transversal -

two nonadjacent interior angles on opposite sides of the transversal.

Alternate Interior Angles -

two interior angles on the same side of the transversal.

Same-Side Interior Angles -

two angles in corresponding positions relative to the two lines.

Corresponding Angles -

two lines that intersect to form right angles.

Perpendicular Lines -

points all in one line.

Collinear Points -

lines on the same plane.

Coplanar Lines -

points on the same plane.

Coplanar Points -

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 above and try again

Example:

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

NEW! Voice Recording

Create Set