Answer: 152°
Explanation:
To find the length of the arc, we need to know some other measurements, which we were given.
In between AD, there is the point C. The distance between AC is 79° and the distance between CD is 73°.
Since C is in the middle of A & D and AC+CD=AD, we can find the sum of 79° and 73° to get AD, and 79+73=152°.
A and D also connect in a different direction, but the problem asked for a minor arc, not a major arc. A minor arc is less than 180° and a major arc is more than 180°. A 180° angle forms a straight line, and is half a full circle.
Hope that helped a lot. Let me know any further questions.
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