Question

The angle formed by an arc at the circumference of a circle is 64 degrees. Another angle on the same arc at the circumference, in the same segment, is:

Answer 1

the other angle is also 64degrees

both angles are half the measure or the arc they are opposite.

Answer 2

they are equal angles.... the circle geometry property is." angles on the same arc are equal"...
both rays have endpoints at the ends of the arc