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In the right triangle shown in the figure, with respect to angle $A$, which side is the adjacent side? 
A$AB$
B$BC$
C$AC$
DNone of these
Answer & Solution
Correct answer: A. $AB$
For angle $A$, the adjacent side is the side that touches angle $A$ but is not the hypotenuse. In the figure, $AB$ is adjacent to angle $A$, $BC$ is opposite, and $AC$ is the hypotenuse.
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