Hi Carolyn,
A foot apart is a "ballpark" figure.
15 inches may also work just as well.
It is the triangulation that's the key.
Dutch
__________________
"Discretion is the better part of valor" Charles Churchill
The intuitive mind is a gift, and the rational mind is a faithful servant. But we have created a society that honors the servant and has forgotten the gift. (paraphrased) Albert Einstein
I come from a long line of sod busters, spanning back several centuries.
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