Geodesic
Trojúhelníčková konstrukce elipsy
Učitel matematiky, Tome 25 (2017) no. 1, pp. 1-8

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In the first part, we assume well known characteristics of ellipse which are given by triangle construction using main circles. We extend them on some lesser known features like Apollonius's theorem of associated radii of the ellipse. In the second part, we assume triangle construction of ellipse given by associated radii.
Classification : 01A20, 97G40 
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     author = {Ko\v{c}andrlov\'a, Milada},
     title = {Troj\'uheln{\'\i}\v{c}kov\'a konstrukce elipsy},
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Kočandrlová, Milada. Trojúhelníčková konstrukce elipsy. Učitel matematiky, Tome 25 (2017) no. 1, pp. 1-8. http://geodesic.mathdoc.fr/item/UM_2017__25_1_a0/