YCIND_240528_6312_CBSE10_circle_2.png
 
In the figure:
 
ΔBCAΔBED by SSS similarity criterion.

\(CB\) \(=\) 30 \(cm\), \(ED\) \(=\) 10 \(cm\) and \(CA\) \(=\) 30 \(cm\)
 
Then, \(EB\) \(=\)  \(cm\).