The figure below is drawn to scale. List all obtuse angles in the figure. Write your answer as a list of angles separated by commas. For example, if you believe ABC and BCD are all the obtuse angles, then ABC, BCD would be your answer.
Recall that an angle is obtuse if and only if it is between 90 degrees and 180 degrees. You should be able to get it from here, ask if you have any further questions.