AB and CD are two common tangents to circles which touch each other at C. If D lies on AB such that CD = 4 cm, then AB is equal to (A) 4 cm (B) 6 cm (C) 8 cm (D) 12 cm

Common Tangents


CD = 4 cm

We know that tangent drawn from an exterior point are equal


From the figure,

CD = AD = 4 cm

CD = BD = 4 cm


AB = AD + BD

AB = 4 + 4

AB = 8 cm

Therefore, the correct option is (C)

Was this answer helpful?


0 (0)


Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published. Required fields are marked *




Free Class