Hosta

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Summary

Description	Русский: Правильный икосаэдр (зелёные линии), вращающийся в его описанной сфере. Показаны четыре круга сферы, соответствующие четырём параллельным плоскостям, в которых лежит по три вершины икосаэдра, образующие четыре правильных треугольника. Этот факт доказан Паппом Александрийским. Нарисовано в Maple. English: Regular icosahedron (in green) rotating inside its circumscribed sphere. Also shown are four circles of the sphere, corresponding to four parallel planes in which lie vertices of the icosahedron, forming four equilateral triangles. This fact was proved by Pappus of Alexandria. The animation was created in Maple.
Date	17 April 2017
Source	Own work
Author	Illustr

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	10:28, 18 April 2017		400 × 400 (957 KB)	Illustr	increasing thickness, making background with transparency=0.7
	16:35, 17 April 2017		400 × 400 (738 KB)	Illustr	User created page with UploadWizard

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