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Level 20
Author:
Colin Beveridge
Level 20 of
http://euclidthegame.org/Level20.html
asks you to construct the outer tangent to two given circles (here, a, with centre A; and b, with centre B). Here's how I'd do it.
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Trefoil Knot
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
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