In a quadrilateral ABCD, `cosAcosB+sinCsinD=`

In the quadrilateral ABCD:

in a quadrilateral ABCD find x.

In a quadrilateral ABCD, vecAB+vecBC+ vecCD is:

In a quadrilateral ABCD, vec(AB) + vec(DC) =

In a quadrilateral ABCD, vec(AB) + vec(DC) =

In a quadrilateral, ABCD, angleDAB + angleBCD=180^(@) , then the quadrilateral ABCD is……………….

In a quadrilateral ABCD, if AB = 10 cm, CD = 6 cm and angleA+angleD=180^(@) , what type of quadrilateral is ABCD ?

In a quadrilateral ABCD ,the angles A,B,C and D are in the ratio 1:2:3:4. Find the measure of each angles of the quadrilateral.

In a quadrilateral ABCD, the angles A,B,C and D are in the ratio 1:2:4:5 Find the measure of each angles of the quadrilateral.

In a quadrilateral ABCD, the angles A,B,C and D are in the ratio 1:2:3:4 Find the measure of each angle of the quadrilateral.