Question

in figure ABCD is a parallelogram it divides the line segment BD in the ratio 1 is to 2 if b is equals to 1.5 cm find BC​

Answer 1

In ΔAOD and Δ EOB

AD||BC

AND, AD||BE

SO, ADO = OBE (alternate interior angles)

Similarly DAO = OEB

Hence.ΔAOD IS SIMILAR TO ΔEOB ( by AA similarity)

OD/OB = AD/BE

taking reciprocal

OB/OD = BE/AD (BC=AD)

1/2 = 1.5/BC

BC=3cm

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