Question

prove that the bisector of the vertical angle of an isosceles triangle is perpendicular to the base.

plz plz plz answer ....
best answer will be mark as brainlest....

Answer 1

let a,b,c be an isosceles triangle such hat AB=AD is the bisector of angle a
to prove bd =dc in triangle ABDand triangle ACD
AB=AC
angBAD=angCAD
AD=AD
tri ABD=triACD
BD=DC

Answer 2

now no need of any answers.