Question

what is angle measure of angle cba​

Answer 1

Answer:

Hlo how r u have a great day

Answer 2

Answer:

Option.C=60°

In ∆ACD , Angle C= 80° ==> Angle opposite to equal sides are equal.

Then, In ∆ACD , Angles A+C+D=180 =>Angle sum property

Hence, 180-(80+80) = Angle A

CAD (or x)= 20

Now , in ∆ABC , we know that, x=20

then in ∆ABD , Angles A+B+D=180 ==>angle sum of triangle

But , A= BAC + CAD

A= 40

Then , A+B+D = 180

B = 180-(80+40)

B= 180-120

B = 60°