What's the measure of angle ADC

Question

In the triangle.

AB=AC

BC=AD=20. The measure of angle A is 20 degrees. Find the measure of angle ADC.

 

Answer 1

We need a diagram or description of the diagram describing the triangles and the locations of these points.

 

You can upload a diagram to resources as well as leave a description. 

 

It looks like we have an isoceles triangles, which means the base angles are the same.

 

Given BC=AD=20, may be useful in proving triangles congruent so we can find what you want.

 

Without a diagram or a description of what is going on, it is all pure speculation.

 

Please repost