Question

13. In the adjoining figure, ABC is an isosceles triangle in which
AB = AC Also. D is a point such that BD = CD. Prove that AD bisects
angle a and angle d​

Answer 1

Answer:By similarity in triangle ABD and ABC

AB=AC

BD=BC

AD=AD

▲ABD~▲ACD

=>angle BAD=angle CAD

=>angleBDA=angleCDA

BY,SPST.

SIMILAR PART OF SIMILAR TRIANGLE.

Step-by-step explanation: