In the given figure, ABCD and ABEF are parallelograms. If O is the mid-point of BC, show that : DC = CF = FE.

In the given figure ABCD is a parallelogram. Prove that AB = 2BC.

In the given figure, ABCD is a parallelogram. Find the area of DeltaAED

In the given figure, M is mid-point of AB and DE, whereas N is mid-point of BC and DF. Show that : EF = AC.

In the figure, ABCD and ABEF are parallelograms. The area of the quadrilateral ABED is 6. what is the area of the parallelogram ABCD?

In the adjoining figure ABCD is a parallelogram, ABM is a line segment and E is the mid-point of BC. Prove that : (i) DeltaDCE cong DeltaMBe (ii) AB = BM (iii) AM=2DC

In the given figure, square ABCD is a parallelogram. If DM bot AC and BN bot AC, then show that squareBNDM is a parallelogram.

In the given figure, ABCD is a parallelogram BC is produced to point X. prove that : "area" (DeltaABX)= "area" (quad.ACXD)

In the given figure ABCD is a trapezium, P is the mid-point of side AD and PR||AB||DC . Find the length of PR, if AB=12cm and DC=8cm

In the given figure ABCD is a trapezium, P is the mid-point of side AD and PR||AB||DC . Prove that R is the mid-point of side BC

ABCD is a parallelogram E is mid-point of AB and DE bisects angle D. Prove that BC= BE