Hi Sam,
this is similar to the other question you have posted. The angle formed between a chord and tangent will be half the measure of the intercepted arc. You have to apply this to find the measure of at DEF.
Sam G.
asked • 04/20/21Chapter 10: Angle Relationships in Circles
Line t is tangent to the circle. Find the measure of arc DEF.
The measure of arc DEF is ___ degrees.
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