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Circle H is inscribed with quadrilateral D E F G. Angle E is 123 degrees. The measure of arc D E is 73 degrees. What is the measure of arc EF in circle H? 41° 50° 114° 173°

User Shrikant K
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2 Answers

4 votes

Answer: A)41 Degrees

Explanation:

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User Kravisingh
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2 votes

Answer:

41 degrees

Explanation:

step 1

Find the measure of arc DGF

we know that

The inscribed angle is half that of the arc comprising

so


m\angle E=(1)/(2)[arc\ DGF]

we have


m\angle E=123^o

substitute


123^o=(1)/(2)[arc\ DGF]


arc\ DGF=246^o

step 2

Find the measure of arc EF

we know that


arc\ DGF+arc\ DE+arc\ EF=360^o ----> by complete circle

substitute the given values


246^o+73^o+arc\ EF=360^o


319^o+arc\ EF=360^o


arc\ EF=360^o-319^o=41^o

User GSala
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