However, there are cases where there is only one unique incircle. Constructing an Incircle (interactively!) A triangle (black) with incircle (blue), incenter (I), excircles (orange), excenters (J A,J B,J C), internal angle bisectors (red) and external angle bisectors (green) 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. 3 mins read. Meaning of incircle. 8 mins. The activity was more of an exploration, it had students create a triangle, incenter, and incircle. of the Incenter of a Triangle. Definition of incircle in the Definitions.net dictionary. Incircle and excircles of a triangle synonyms, Incircle and excircles of a triangle pronunciation, Incircle and excircles of a triangle translation, English dictionary definition of Incircle and excircles of a triangle. It is the place where the bisectors the three angles of the triangle intersect. ... incircle (Noun) The circle within a triangle that is tangent to all three sides. What is the Incircle of a Triangle? ‘The three lines through the incircle and the circumcircle of triangles AIB, BIC, and CIA meet at a point.’ These three angle bisectors are always concurrent and always meet in the triangle's interior (unlike the orthocenter which may or may not intersect in the interior). Problem 3 (CHMMC Spring 2012). Incircle and Inradius of a Triangle. Students were required to look up the definition of an incenter, which states that if all three angles in a triangle are bisected and those lines are extended, the intersection of those three bisecting angles is called the incenter. Related Questions to study. Definition. The incenter is the center of the incircle. A circle is inscribed in the triangle if the triangle's three sides are all tangents to a circle. Learn with Videos. Incircle and Inradius of a Triangle. The incircle of a triangle ABC is tangent to sides AB and AC at D and E respectively, and O is the circumcenter of triangle BCI. The centre of the incircle of a triangle is called its "incentre". What does incircle mean? A circle inscribed in a triangle or other figure so as to touch (but not cross) each side. Quick summary with Stories. Incircle - definition. The Gergonne triangle (of ABC) is defined by the 3 touchpoints of the incircle on the 3 sides.The touchpoint opposite A is denoted T A, etc. An incircle of a triangle is the largest circle that will fit inside a triangle, just touching each of the triangle's sides.. Another term for the incircle of a triangle is the inscribed circle.. This Gergonne triangle T A T B T C is also known as the contact triangle or intouch triangle of ABC.. In this situation, the circle is called an inscribed circle, and its center is called the inner center, or incenter. The incircle of a triangle is a circle that is located in the interior of a triangle and is tangent to all three sides of the triangle. In triangle ABC, the angle bisector of \A meets the perpendicular bisector of … Since the triangle's three sides are all tangents to the inscribed circle, the distances from the circle's center to the three sides are all equal to the circle's radius. Webster Dictionary (0.00 / 0 votes) Rate this definition: Incircle (verb) . This definition clearly shows that there can be more than one incircle for certain types of triangles. The incenter is one of the triangle's points of concurrency formed by the intersection of the triangle's 3 angle bisectors.. Prove that \ODB = \OEC. Incircle of a triangle is the circle , which touches all three sides of a triangle. Definition of Incircle. To construct the incircle of a triangle, follow these steps: Step 1. The center of the incircle is called the triangle's incenter. The incentre is the center of this circle.