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In circle C, what is m? 31° 48° 112° 121°

In circle C, what is m? 31° 48° 112° 121°-example-1

2 Answers

3 votes

THE ANSWER IS:

the measure of the arc FH is 48 degrees

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User Navinrangar
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4 votes

Answer:


48^(\circ)

Explanation:

Consider we need to find
m\widehat{FH},

Since, if two chords of a circle intersect outside the circle then the measure of intercepted angle is half of the difference of the measures of intercepted arcs.

Thus,


m\angle ADJ = \frac{m\widehat{AJ}-m\widehat{BE}}{2}

By the diagram,


37^(\circ)=\frac{m\widehat{AJ}-38^(\circ)}{2}


74^(\circ)=m\widehat{AJ}-38^(\circ)


\implies m\widehat{AJ}=74^(\circ)+38^(\circ)=112^(\circ)

Now,


m\angle AGJ = \frac{m\widehat{AJ}-m\widehat{FH}}{2}


32^(\circ)=\frac{112^(\circ)-m\widehat{FH}}{2}


64^(\circ)=112^(\circ)-m\widehat{FH}


\implies m\widehat{FH}= 112^(\circ)-64^(\circ)=48^(\circ)

Hence, SECOND OPTION would be correct.

User Russ Cox
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