West Bengal state government will observe Rosogolla Day on November 14 2018 to commemorate the first anniversary of the state’s famous sweet getting Geographical Indication (GI) tag as 'Bengal’s Rosogolla'.
In the given figure, CD and AB are diameters of circle and AB and CD are perpendicular to each other. LQ and SR are perpendiculars to AB abd CD respectively. Radius of circle is 5 cm, PB : PA = 2 : 3 and CN: ND = 2 : 3. What is the length (in cm) of SM ?