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geometrie

geometrie

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MILAN K.
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Viz níže, nejprve se vyrobí kolmice (jdoucí bodem C) na ty rovnoběžky kružítkem, tím získáme paty kolmic, zde P (na p) Q (Q na q) a délka CP se kružítkem zdvojí a protne se jí z bodu C přímka q a máme B, naopak délka CQ se kružítkem rozpůlí a kružítkem se tato nanese od bodu B na q "vlevo" a máme A
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MILAN K.
Tím máme trojúhelník ve smyslu označení ABC. Také se dá B symetricky na druhou stranu a pokud chceme zachovat pořadí značení ve smyslu ABC, tak se ta délka musí nanést zase "vlevo", pak bude ale poněkud AC delší, než AC trojúhelníku "vpravo", pokud by měl být symetrický, pak bude ale značení retrográdně ACB
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