Question

please solve the question
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Answer 1

Answer:

if BD=Ce then AD =AE

therefore D and E are mid points on AB and AC

therefore DE//BC by converse of mid point theorem

Answer 2

AB = AD+BD. ( As D lies on AB)

AC= AE+EC. ( ,,. )

AS B=C

THEN

AB =AC

ALSO

AD+DB=AE+EC. (DB=EC)

AD=EC

NOW

FROM THEOREM 1

DE || BC