[AD=3cm,BC=5cm,CD=6cm," ind "AD.],[ABCD" is a parallelogram.Diagonals "AC" and "BD" intersect at "E" .Show that the circumcircles of "],[Delta ADE" and "Delta BCE" touch at "E" ."]

ABCD is a parallelogram.Diagonals AC and BD interset at E.Show that the circumcircles of /_ADE and /_BCE touch at E

The side AD of parallelogram ABCD is produced to a point E. BE intersects CD at F. Show that Delta ABE~ Delta CFB .

ABCD is trapezium with AB || DC. The diagonal AC and BD intersect at E . If Delta AED ~ Delta BEC . Prove that AD = BC .

ABCD is a rectangle. The diagonals AC and BD intersect at O. If AB = 32 cm and AD = 24 cm, then what is OD equal to ?

ABCD is a trapezium in which AB||DC the diagonals AC and BD are intersecting at E. IF DeltaAED is similar to DeltaBEC , then prove that AD=BC.

In parallelogram ABCD, its diagonals overline (AC) and overline (BD) intersect at O. if AO=5cm then AC= ……… cm .

ABCD is an isoceles trapezium . AB||CD AD=BC diagonal intersect at O, area of ABO = 84 cm^(2) find area of Delta COD

The sides AD, BC of a trapezium. ABCD are parallel and the diagonals AC and BD meet at O. If the area of triangle AOB is 3 cm and the area of triangle BDC is 8 cm2, then what is the area of triangle AOD?