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КонусВ геометрията конусът се дефинира като геометрично тяло, заградено от конична повърхнина и едно равнинно сечение. Коничната повърхнина е повърхнина, която се описва от права, минаваща през фиксирана точка P и хлъзгаща се по крива ω (несъдържаща фиксираната точка), наречена управителна (директорна) крива. Правите, които минават през точка P и точките на управ…
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