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

In the given figure, ABCD is a parallelogram. E and F are any two points on AB and BC, respectively. Prove that ar (triangleADF)=ar(triangleDCE) .

In the given figure ABCD is a parallelogram in which AB||CD and E and F are the mid points of AB and BC respectively. What is the area of angleBEF ?

In the given figure, ABCD is a parallelogram. AB is produced to P, such that AB=BP and PQ is drawn parallel to BC to meet AC produced at Q. Given AB=8cm,AD=5cm,AC=10cm . Prove that point C is mid-point of AQ.

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

In the given figure, ABCD is a parallelogram and E is the midpoint of side BC. If DE and AB when produced meet at F, prove that AF = 2AB.

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

In the given figures , ABCD is a rectangle Prove that : Delta ABE ~= Delta CDF.

In the given figure, ABCD is a parallelogram in which DC is extended to F such that AF intersects BC at E . Then perimeter of DeltaABE =

In the adjoining figure, ABCD and PBCQ are parallelogram. Prove that: APQD is a parallelogram