A survey regarding the heights (in cm) of \(50\) girls of Class X of a school was conducted and the following data was obtained:
 
Height (in \(cm\)) Number of girls
Less than \(140\) 4
Less than \(145\) 12
Less than \(150\) 30
Less than \(155\) 40
Less than \(160\) 46
Less than \(165\) 50
 
Find the median height.
 
Answer:  
 
Median \(=\)
 
[Note: Round off the answer to \(2\) decimal place.]