<PRE><B>Question 1189442</B>
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Hey, &amp;nbsp;it is really interesting to me to know how seven circles of the same radius 
can be tangent &amp;nbsp;&quot; to each other &quot; &amp;nbsp;on a plane.


Could you provide a link, &amp;nbsp;a picture, &amp;nbsp;a sketch or a reference ?



As a bonus, &amp;nbsp;I promise to send you &amp;nbsp;1 &amp;nbsp;(one) &amp;nbsp;US &amp;nbsp;dollar in response . . . 



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I got a response from you pointing to the link

https://etc.usf.edu/clipart/42900/42921/circle-27_42921.htm



But notice, &amp;nbsp;that the &amp;nbsp;7 &amp;nbsp;(seven) &amp;nbsp;circles of radius of &amp;nbsp;3 &amp;nbsp;cm in this plot &amp;nbsp;DO &amp;nbsp;NOT &amp;nbsp;TANGENT &amp;nbsp;&quot; each to other &quot;,

so yours wording description is &amp;nbsp;INCORRECT.



It is &amp;nbsp;PRECISELY &amp;nbsp;what I wanted to make sure, &amp;nbsp;that your description is incorrect.



It is incorrect, &amp;nbsp;because it describes a situation which &amp;nbsp;NEVER &amp;nbsp;MAY &amp;nbsp;HAPPEN.



Therefore, &amp;nbsp;I will not send you my one US dollar.



I can not spend my money paying for incorrect descriptions . . . 



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