Question

in triangle def altitude ds bisects the side ef, prove that def is an isosceles triangle

Answer 1

Answer:

DF=DE (Isoceles)

DG=DG (common side)

∠DGF=∠DGE(90

0

)

Hence ΔDGF and ΔDGE are congruent.

FG=GE

Hence DG is a median.

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