Question

In figure, BDEF and DCEF are each a //gm. Is it true that BD = DC? WHY or whynot ?

Answer 1

SOLUTION

IN PARALLELOGRAM BDEF

:. BD = EF (i)...... (opposite side of PARALLELOGROM are always equal)

IN PARALLELOGRAM DCEF

CD = EF (ii)........ (opposite side of PARALLELOGROM are always equal)

FROM EQUATION (I) and (ii)

BD = CD

Answer 2

Answer:

In parallelogram BDEF

BD = EF [In a parallelogram opposite sides are equal]

In parallelogram DCEF

DC = EF [In a parallelogram opposite sides are equal]

Since, BD = EF = DC

So, BD = DC

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