Now we are getting more advanced!

You will now construct a given angle at some other place. To do this, you use congruent triangles. It is a fact that two triangles with equal sides have equal angles.

 

You see that angle at the point B? Create the same angle at B*

The trick is already visible in the construction. You need to construct congruent triangles ABC and A*B*C*. All sides must have the same lengths!

The solution is here.

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