Two light rods AB = a + b and CD = a -b symmetrically lying on a horiz – InterviewSolution

1.	Two light rods AB = a + b and CD = a -b symmetrically lying on a horizontal. There are kept intact by two strings AC and BD. The perpendicular distance between rods is a. The length of AC is given by
Answer» a. `a^2 + B^2` b. `a^2 - b^2` C. `SQRT(a^2-b^2)` d. `sqrt(a^2 + b^2)` ANSWER :D

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