If ¯¯¯¯¯¯¯¯PQ=3 cm, ¯¯¯¯¯¯¯¯RS=6.2 cm. Then the measure of line segment whose length is equal to the sum of ¯¯¯¯¯¯¯¯PQ and ¯¯¯¯¯¯¯¯RS is:
PQ and RS are two parallel chords of a circle whose centre is O and radius is 10 cm. If PQ = 16cm and RS = 12 cm. Find the distance between PQ and RS if they lie on the same side of the centre.