In quadrilateral ABCD above , `bar(AD) bar(BC)` and `CD=1/2AB`. What is the measure of angle B ?

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

In /_\ACD below, B is on bar(AC) , E is on bar(AD) , the measure of /_CAD is 28^(@) , and bar(AD) is perpendicular to both bar(BE) and bar(CD) . What is the measure of /_CBE ?

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

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

In quadrilateral ABCD, AB||CD and BC||AD. Show that (i) DeltaABD~=DeltaCDB

In quadrilateral ABCD, AB "||" CD and AD= BC, prove that angleA=angleB.

In quadrilateral ABCD, AB = AD and BC = CD. Show that angleABC= angleADC .

In a quadrilateral ABCD, AB = CD and angle B = angle C . Prove that AD is parallel to BC.