Question

Two Circles of radii 5.2cm and 4.3cm respectively touch each other. What is the Distance between their Centre ?​

Answer 1

Since two circles touch each other.
Two cases arises :
Case 1: when circles touches externally
Then distance between their centres = 5.2 + 4.3= 9.5

Case 2 : When two circles touch eqch other internally
Then distance between their centres = 5.2 - 4.3 = 0.9