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October 24, 2014

October 24, 2014

Posted by **surbhi kumari** on Thursday, November 1, 2012 at 7:13am.

- circle -
**drwls**, Thursday, November 1, 2012 at 8:19amThe chord that is 30 cm long is 8 cm above center. You should be able to see why by noting the 8-15-17 right triangle formed by circle center, 16 cm chord endpoint and a perpendicular from chord endpoint to the circle diameter. There is another 8-15-17 triangle, 15 below the circle center.

The separation between parallel chords is

15 + 8 = 23 cm.

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