Incircle and excircles of a triangle polygon with any number of sides that has an inscribed circle—one that is tangent to each side—is called a tangential polygon. Incircle and excircles of a triangle In geometry, the incircle or inscribed circle of a triangle is the largest circle contained in the triangle; it touches (is tangent to) the three sides. The center of the incircle is a triangle center called the triangle's incenter. An excircle or escribed circle of the triangle is a circle lying outside the triangle, tangent to one of its sides and tangent to the extensions of the other two. Every triangle has three
Adventures in a City that does not Exist treacherous commerce adviser from the play "The Snow Queen" (by Evgeny Schwartz) decides to use Slavin's ignorance of books in order to deceive him and with the help of other antagonists to subjugate readers worldwide. The protagonists come to help the boy, and together with friends Slava manages to defeat the adviser and his henchmen. When Slava returns to the real world, the first thing he does is to go to the library. Adventures in a City that does not Exist Adventures in a City that does not Exist () is a 1974 Soviet children's musical film, directorial debut of