Properties of Quadrilaterals (Leaving Cert Mathematics): Flashcards

$360^\circ$

Equal and parallel

Equal

Bisect each other

Supplementary

$90^\circ$

Equal and bisect each other

Equal

$90^\circ$

Diagonals bisect the angles

All equal sides, all $90^\circ$ angles

Equal, bisect each other, intersect at $90^\circ$

One pair of opposite sides parallel

Two pairs of adjacent sides equal

Intersect at $90^\circ$, one bisects the other