Question

please solve these questions​

Answer 1

Step-by-step explanation:

Join AD.

Now in triangle ABD and ACD, we have

AB = AC (Given)

DB = DC (Given)

AD = AD (Common)

So both the triangles are congruent by SSS congruence criteria.

Hence ∠ABD = ∠ACD  (by CPCT)

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Answer 2

Answer:

hello....

Friend....

Your answer is :-

Step-by-step explanation:

Angle ACD equals to 140 degrees. Concept used: Sum of any two angles of triangles = Exterior angle of third angle of triangle.