A) 30 unit
B) 20 unit
C) 40 unit
D) None of these
Correct Answer: B
Solution :
\[\frac{AC}{AB}=\cos 60{}^\circ \] \[\frac{AC}{AB}=\cos 60{}^\circ \] \[=40.\frac{1}{2}\] \[=20\,\,unit\]You need to login to perform this action.
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