The measure of the arc DF is 86 degrees if the measure of the major arc is 274 degrees option (D) is correct.
What is a circle?
It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)
We have:
In the diagram below, DE and EF are tangent to O.
Let x be the measure of arc DF.
The complete revolution around the center = 360 degree
Major arc + Minor arc = 360
274 + x = 360
x = 86 degrees
Thus, the measure of the arc DF is 86 degrees if the measure of the major arc is 274 degrees option (D) is correct.
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