Length of the internal bisector of a triangle


An angle bisector of a triangle is a straight line through a vertex which cuts the corresponding angle in half. The three angle bisectors intersect in a single point, the incenter, the center of the triangle’s incircle.There is a relation between the length of the internal bisector, opposite to the side “a” and the sides of the triangle. (Also equivalently for bisectors Wb and Wc).

Related formulas


waLength of the internal bisector (m)
bLength of the side b (m)
cLength of the side c (m)
sSemiperimeter of the triangle (m)
aLength of the side a (m)