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The length of the common chord of the circles of radii 15 and 20 whose centers are 25 units of distance apart, is :
\[\begin {array} {1 1} (1)\;12 & \quad (2)\;16 \\ (3)\;24 & \quad (4)\;25 \end {array}\]
jeemain
eamcet
math
2010
q53
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Sep 27, 2013
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meena.p
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Nov 7, 2013
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