Forrás: [url=https://socratic.org/questions/triangle-abc-is-inscribed-in-a-circle-that-is-inscribed-in-a-square-if-ab-ac-and-1] 1.[/url] [url=http://www.galgoczi.net/anyagok/Haromszog%20kore%20irhato%20kor%20kozeppontjanak%20es%20sugaranak%20meghatarozasa%20szamitassal.pdf]2.[/url]