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Answer:
C
Step-by-step explanation:
The measure of the tangent- tangent angle DEF is half the difference of the measures of the intercepted arcs , that is
∠ DEF = [tex]\frac{1}{2}[/tex] ( major DF - minor DF ) ← substitute values
84° = [tex]\frac{1}{2}[/tex] (264 - DF ) ← multiply both sides by 2 to clear the fraction
168° = 264° - DF ( add DF to both sides )
DF + 168° = 264° ( subtract 168° from both sides )
DF = 96°
That is minor arc DF = 96°
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