In a quadrilateral ABCD, AC is the bisector of the (AB, AD) which is `(2pi)/(3)`, `15|AC|=3|AB|=5|AD|`, then `cos(BA, CD)` is equal to

In a quadrilateral ABCD,vec AC is the bisector of the (vec AB^^vec AD) which is (2 pi)/(3),15|vec AC|=2|vec AB|=5|vec AD| then cos(vec BA^^vec CD) is

In a quadrilateral ABCD, show that (AB+BC+CD+DA)gt(AC+BD) .

In cyclic quadrilateral ABCD, AD|| BC. Prove that AB = CD.

In quadrilateral ABCD, AB=AD, AC bisects angleA . Prove DeltaABC~ADC .

In a quadrilateral ABCD, bar(AC) bot bar(BD) and AB=AD. ABCD is a ________

In Figure,if AD is the bisector of LA, show that: AB>BD( ii) AC>CD

In a quadrilateral ABCD, AB= AD and CB= CD. Prove that: AC bisects angle BAD

In quadrilateral ABCD, AB = BC = CD = AD and AC ne BD then it is a .....