In the figure above, ABCD is a parallelogram , and if AC=30 cm and BD=20 cm, find CP+DP.

In the figure above, ABCD is a parallelogram, AC=14 cm and BD=10 cm, then AP+BP=_______ cm .

ABCD is a cyclic parallelogram and AC = 9 cm, find BD.

If ABCD is a parallelogram, then vec(AC) - vec(BD) =

If ABCD is a parallelogram, then vec(AC) - vec(BD) =

If ABCD is a parallelogram then bar(AC)+bar(BD)=

In the adjoining figure a parallelogram ABCD is shown . AB=24 cm and AO=BO=13 cm. Find BC :

In the given figure, ABCD is a parallelogram in which AN and CP are perpendiculars on diagonal BD. Prove that : (i) DeltaADN =DeltaCBP (ii) AN=CP