[" Dpposite angles of a quadrilateral ABCD are equal.If "AB=],[" letermine CD."]

Opposite angles of a quadrilateral ABCD are equal. If AB=4 cm determine CD.

Opposite angles of a quadrilateral ABCD are equal. If AB = 4 cm, determine CD.

Opposite angles of a quadrilateral ABCD are equal. If AB = 4 cm, determine CD.

Two oppsite angles of the quadrilateral ABCD are supplementary and aC bisects angle BAD . Prove that BC Cand CD are equal.

If the sides of a quadrilateral ABCD touch a circle prove that AB+CD=BC+AD.

If the sides of a quadrilateral ABCD touch a circle prove that AB+CD=BC+AD.

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

The midpoints of the sides AB,BC,CD and DA of a quadrilateral ABCD are joined to form a quadrilateral.If AC=BD and AC perp BD then prove that the quadrilateral formed is a square.

In the figure, diagonal AC of a quadrilateral ABCD bisects the angles A and C. Prove that AB = AD and CB = CD.

AB and CD are respectively the smallest and longest sides of a quadrilateral ABCD. Show that angleA lt angleC and angleB gt angleD .