A) 5 cm
B) 6 cm
C) 7 cm
D) 8 cm
Correct Answer: A
Solution :
(a): Area of \[||gm\,\,=DL\times AB=156\Rightarrow DL=\frac{156}{13}=12\]Since \[DL=12\] \[\therefore \] In right \[\Delta le\] ALD, \[AL=\sqrt{A{{D}^{2}}-D{{L}^{2}}}-\sqrt{{{13}^{2}}-{{12}^{2}}}=5\]You need to login to perform this action.
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