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39 votes
If the m< P is 65 degrees, then what is the measure of Arc XY

If the m< P is 65 degrees, then what is the measure of Arc XY-example-1
User Junya Kono
by
3.3k points

1 Answer

25 votes
25 votes

Answer:


\text{ArcXY}=115\text{ degrees}

Step by step explanation:

We can solve this situation by the theorem of the angle formed outside of a circle by intersection:

*For two tangents:


m<p>Then, if m</p><p>[tex]\begin{gathered} 65=(1)/(2)((360-mXY)-mXY) \\ 65=(1)/(2)(360-\text{mXY-mXY)} \\ 65=(1)/(2)(360-2\text{mXY)} \\ 65=180-\text{mXY} \\ \text{mXY}=180-65 \\ \text{mXY}=115 \end{gathered}

User Aefits
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