Editor
Editor
 Sep 18, 2022
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In the following triangle ABC, the value of angle $\alpha$ is
Difficulty: Easy
A: 
$91^{\circ}$
B: 
$26^{\circ}30'$
C: 
$20^{\circ}55'$
D: 
$51^{\circ}$
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NETNUST Entry TestMathematicsFundamentals of Trignometry