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OpenStudy (anonymous):
Two concentric circles are of radii (3x+5) and (2x-4) cm (x > 0). Length of the chord of the outer circle which touch the inner circle 48 cm. Find the radii of the two circles.
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OpenStudy (anonymous):
|dw:1362091799438:dw| Here the external chord to inner circle would be tangent to it... and would bisect the chord at the point of contact...
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