Question

Let Oonkar fields is isosceles triangle in which D,E, F are the midpoint of sides AB,AC and BC. Prove that DEF is a isosceles triangle

Answer 1

since, ∆ABC is a isosceles ∆le.
Therefore, AB=AC
By MID POINT THEROEM,
EF=AB/2. AND. DF=AC/2

THEREFORE,
EF=DF
SO, ∆DEF is a isosceles triangle.