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masya89 [10]
3 years ago
12

What is the measure of arc EF in circle H? O 41° O 50° O 114 O 1730

Mathematics
2 answers:
timurjin [86]3 years ago
7 0

Answer:

The measure of arc EF = 41°

Step-by-step explanation:

Given:

Arc DE = 73°

\angle FED=123\°

Now, we know from central angle theorem that the measure of central angle by an arc is twice that of the angle made by the same arc at the circumference. Therefore,

\textrm{Major Arc DGF}=2\times \angle FED\\\textrm{Major Arc DGF}=2\times 123\\\textrm{Major Arc DGF}=246\°

Now, we know that sum of all arcs on a circle is equal to 360°.

Therefore, arc DGF + arc DE + arc EF = 360°

246+73+arc\ EF=360\\319+arc\ EF=360\\arc\ EF=360-319=41\°

Therefore, the measure of the arc EF is 41°.

Hatshy [7]3 years ago
3 0

Answer:

41

Step-by-step explanation:

answer is 41

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