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Given: EFGH inscribed in k(O) m∠FHE = 45°, m∠EGH = 49° Find: m∠FEH

Given: EFGH inscribed in k(O) m∠FHE = 45°, m∠EGH = 49° Find: m∠FEH-example-1
User Tdammers
by
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1 Answer

4 votes

Answer:


m<FEH=86\°

Explanation:

we know that

The inscribed angle measures half that of the arc comprising

step 1

Find the measure of arc EF


m<FHE=(1)/(2)(arc\ EF)

we have


m<FHE=45\°

substitute


45\°=(1)/(2)(arc\ EF)


arc\ EF=90\°

step 2

Find the measure of arc EH


m<EGH=(1)/(2)(arc\ EH)

we have


m<EGH=49\°

substitute


49\°=(1)/(2)(arc\ EH)


arc\ EH=98\°

step 3

Find the measure of arc FGH


arc\ FGH=360\°-(arc\ EH+arc\ EF)

substitute the values


arc\ FGH=360\°-(98\°+90\°)


arc\ FGH=172\°

step 4

Find the measure of angle FEH


m<FEH=(1)/(2)(arc\ FGH)

we have


arc\ FGH=172\°

substitute


m<FEH=(1)/(2)(172\°)=86\°

User John Landheer
by
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