Parallelogram Properties

7 terms by littlewu07039 

Create a new folder

Advertisement Upgrade to remove ads


-2 pairs opp parallel sides
-2 pairs opp congruent angles
-2 pairs opp congruent sides
-consecutive angles are supp
-diagonals bisect each other


-parallelogram with 4 congruent angles, 4 right angles (equiangular)
-all properties of a parallelogram apply
-diagonals are congruent


-parallelogram with 4 congruent sides (equilateral)
-all properties of a parallelogram apply
-diagonals are perpendicular
-diagonals bisect the angles


-parallelogram with 4 congruent sides and angles (equilateral, equiangular= regular)
-both rectangle and rhombus
-all properties of a parallelogram, rhombus, and rectangle apply


-quadrilateral with no parallel sides but two pairs of adjacent congruent sides (opp sides are not congruent)
-diagonals are perpendicular
-only 1 pair of opp angles are congruent (between non-congruent sides)
-other 2 angles are bisected by diagonal


-quadrilateral with 1 pair of parallel sides
-parallel sides are bases
-non parallel sides are legs
-midsegment (median) joins the midpoints of the legs and is parallel to both bases (avg of the bases)
-midsegment=1/2 (b1+b2)

isosceles trapezoid

-trapezoid with congruent legs
-diagonals are congruent
-base angles are congruent

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


Reload the page to try again!


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