A line touches a circle of radius 6 cm. Another line is drawn which is tangent to the circle. If the two lines are parallel, then the distance between them is:
Answer & explanation
Correct answer: option 2

Let MN and PQ are two parallel lines
AO = OB = r = 6 cm
AB = AO + OB = 6 + 6 = 12 cm
Therefore, answer is 12 cm.