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Sections of Polyhedra If possible, support the channel: Sberbank 2202 2061 6868 3261 (Valery Viktorovich) Tinkoff 2200 7007 2247 5927 (Valery Viktorovich) Raiffeisen 2200 3005 1176 7350 (Valery Viktorovich) My classes on Skype: https://vk.com/id224349278 New VKontakte Group: https://vk.com/volkovvalery Constructing sections of polyhedra. Constructing sections of a cube.