Question

What is the​ measure, in​ degrees, of angle​ b?
40 degrees
20 degrees
b

​(The figure is not to​ scale.)
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.
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Question content area right
Part 1
The measure of angle b is
  
enter your response here degrees.
​(Type an integer or a​ decimal.)

Answer 1

I can’t see the figure you’re using. Could you either upload the diagram or describe how the 40°, 20° and b are positioned (for example: are they the three angles of a triangle, are some formed by parallel lines, is b an exterior angle, etc.)?

If they are the three interior angles of a triangle, then b = 180° − (40° + 20°) = 120°.