Solution:
Radii of the circles are 5 cm and 2.8 cm.
i.e. OP = 5 cm and CP = 2.8 cm.
(i) When the circles touch externally,
then the distance between their centers = OC = 5 + 2.8
= 7.8 cm.
(ii) When the circles touch internally,
then the distance between their centers = OC = 5.0 – 2.8
= 2.2 cm