Question

please solve this problem​

Answer 1

Step-by-step explanation:

Given:

triangle ABC is isosceles

So, AB = AC ..........(1)

triangle DBC us isosceles

So, DB = DC .............(2)

To prove: angle ABD = angle ACD

Proof

Let us join AD.

We take triangle ABD and triangle ACD,

In triangle ABD and triangle ACD,

AB = AC (From 1)

BD = CD (From 2)

AD = AD (Common)

therefore triangle ABD is congruent to triangle ACD (SSS congruence rule)

》angle ABD = angle ACD (CPCT)

HENCE PROVED.