JEE Main 2019 — Circle Question with Solution
From: JEE Main 2019 (Online) 9th January Morning Slot
Question
Three circles of radii a, b, c (a < b < c) touch each other externally. If they have x-axis as a common tangent, then :
Choose an option
Show full solutionCorrect option: C
Correct answer
C =
Step-by-step explanation
AB = AC + CB
=
+
= +
Dividing by we get.
= +
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This is a previous-year question from JEE Main 2019, covering the Circle chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.