Предмет: Геометрия, автор: Димарик17

Как построить сечение треугольной пирамиды плоскостью, проходящей через ее вершину и перпендикулрной основанию

Ответы

Автор ответа: sedinalana

0

ABCD-пирамида,DO-высота пирамиды
DO_|_(ABC)
AH_|_BC
AH∈(ABC)⇒DO_|_AH
DH_|_BC
DO∈(ADH)⇒(ADH)_|_(ABC)

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4ec29de8fb9f268db592d9510adc045d.docx

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