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Editor
 Sep 18, 2022
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In triangle ABC, a=80, b=92, c=124, then the value of angle $\beta$ is
Difficulty: Easy
A: 
$43^{\circ}$
B: 
$60^{\circ}19'$
C: 
$57^{\circ}$
D: 
$47.9^{\circ}$
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NETNUST Entry TestMathematicsFundamentals of Trignometry