Question

prove that the bisector of Vertical angle of an isosceles triangle bisect the base at right angle​

Answer 1

Step-by-step explanation:

Let ΔABC be the isoceleus triangle with AB=AC and AD as vertical angle bisector

AB=AC∠B=∠C∠BAD=∠CAD

So by ASA  criteria  the triangles are congruent.

⟹BD=DC

So the bisector  of vertical angel bisects the base 

I hope it helps you:)