There are two circles C_1 and C_2 of radii r_1 and r_2, respectively. – InterviewSolution

InterviewSolution

1.	There are two circles C_1 and C_2 of radii r_1 and r_2, respectively. They are mutually tangent to each other and to a line as well. There is one more circle of radius r_3 which is tangent to this line and first two circles C_1 and C_2. What is the relation between the three radii r_1, r_2 and r_3 ?
Answer» `1/sqrtr_1+1/sqrtr_2=1/sqrtr_3` `sqrtr_1/sqrtr_2+sqrtr_2/sqrtr_1=1/sqrtr_3` `1/sqrtr_3+1/sqrtr_1+1/sqrtr_2` NONE of these Answer :C

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