Предмет: Геометрия, автор: vinki21

если диагональ куба равна 3 ед,то ребро куба равно

Ответы

Автор ответа: shadowangel97

16

д² = а²+в²+с², но раз куб то у него а=в=с= х
3²= 3х²
9= 3х²
х²=3
х=√3см,вот тебе и ребро куба, любое

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