5. Determine the diameter of the circle

The diameter \(XY\) subtend an angle at the point \(Z\) on the circumference of the circle. If the length of the chords \(XZ\)\(=\) 3 \(cm\) and \(YZ\) \(=\) 4 \(cm\), find the diameter of the circle .

 

 

The diameter of the circle \(=\)  \(cm\).