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1. Let \(L\) be the centre of the circle and \(MN\) be its chord. A line from \(L\) cuts the chord \(MN\) at \(O\) such that \(\angle LON\) \(= 90^{\circ}\). If \(MO\) \(=\) 12 \(cm\). Find the length of the chord.
 
Answer:
 
The length of the chord \(MN\) is  \(cm\).
 
 
2. If the radius of the circle is 5 \(cm\) and the perpendicular distance from the centre to the chord is 4 \(cm\), then find the length of the chord.
 
Answer:
 
The length of the chord is  \(cm\).