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<p>[QUOTE=&quot;Collect89, post: 2015098, member: 15445&quot;]The Web link performs the math &amp; it looks great!</p><p>&nbsp;</p><p>When you calculate the area of the segment [the segment is the green area in the diagram #2], divide that area by the complete area of an unclipped coin of same radius.&nbsp; That resulting number will be the percent clip.&nbsp; This should be the correct calulation for a <u>straight</u> clip on a flat disc.</p><p>&nbsp;</p><p>If you assume that a <u>curved</u> clip is perfectly curved, then you could simply double the area of the segment you have calculated &amp; then divide that (2x segment area) by the area of an unclipped coin of same radius.</p><p>&nbsp;</p><p>Math is cool.</p><p>&nbsp;</p><p>What chord length did you measure or what was the resulting % clip which you calulated for this coin?[/QUOTE]</p><p><br /></p>

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