A) 12 cm
B) \[12.65\text{ }cm\]
C) \[12.36\,cm\]
D) \[12.56\,cm\]
Correct Answer: B
Solution :
\[PA=12cm,\] \[OA=5\text{ }cm,\] \[OB=3\text{ }cm,\] \[O{{P}^{2}}=O{{A}^{2}}+A{{P}^{2}}\] \[=O{{B}^{2}}+B{{P}^{2}}\] \[\Rightarrow \] \[25+144=9+B{{P}^{2}}\] \[\Rightarrow \] \[BP=\sqrt{160}\,cm=12.65\,cm\] (approx.)You need to login to perform this action.
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