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Article

Hrubý, Dag
Kružnice dotýkající se stran trojúhelníku. (Czech) [Escribed and inscribed circles of a triangle]. Učitel matematiky, vol. 24 (2016), issue 4, pp. 231-237
MSC: 51-xx
Summary:
The goal of the article is to point out the concept of the escribed circle of the triangle which is only touched on in present secondary mathematics textbooks. Interesting properties of escribed circles of the triangle are shown on three examples.
References:
[1] Sedláček, J.: Slovník školské matematiky. a kol. (1981). Praha: SPN.
[2] Schuster, M.: Trigonometrie. (1911). Leipzig und Berlin: B. G. Teubner.
[3] Sivák, B.: Úlohy pre prácu matematických krúžkov. (1991). Matematické obzory, zväzok 36, str. 52.
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