Question

In circle A, marc BC is 71° and marc EF is 78°: Points B, C, E, and F lie on Circle A. Lines BE and CF pass through point D, creating angle EDF. The measure of arc BC is 71 degrees, and the measure of arc EF is 78 degrees. What is m∠FDE? 35.5° 74.5° 39° 78°

Answer 1

Answer:

74.5

Step-by-step explanation:

Since the angles are not on the center of the circle, we use this formula:

71+78/2= 74.5