Two circles of radii 6 cm and 2 cm are such that the distance between their centers is 8 cm. How many common tangents can be drawn?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 3.
Radii r1 = 6 cm, r2 = 2 cm, Distance between centers = 8 cm
r1 + r2 = 8 ⇒ Circles touch externally
Number of common tangents = 3 (2 Direct + 1 Transverse at point of contact)