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6.1: Подібні трикутники
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Якщо\(\triangle A'B'C' \sim \triangle ABC\) з\(k = 1\) в 6.1.1, то\(\triangle A'B'C' \cong \triangle ABC\). (iii) Якщо\(\triangle A''B''C'' \sim \triangle A'B'C'\) і\(\triangle A'B'C' \sim \triangle A...Якщо\(\triangle A'B'C' \sim \triangle ABC\) з\(k = 1\) в 6.1.1, то\(\triangle A'B'C' \cong \triangle ABC\). (iii) Якщо\(\triangle A''B''C'' \sim \triangle A'B'C'\) і\(\triangle A'B'C' \sim \triangle ABC\), то Якщо для двох трикутників\(\triangle ABC\)\(\triangle AB'C'\), і у\(k > 0\) нас є\(B' \in [AB)\)\(C' \in [AC)\),\(AB' = k \cdot AB\) і\(AC' = k \cdot AC\), то\(\triangle ABC \sim \triangle AB'C'\).