If K is The midpoint of ST, then RK is called a(n) _ of /_\RST. If RK ST, then RK is called a(n) _ of /_\RST. If K is the midpoint of ST and RK ST, Then RK is called a(n) _ of ST. If RK is both an altitude and a median of /_\RST, then A. /_\RSK ~/_\RTK by _ b. /_\RST is a(n) _triangle. If T is on the bisector of ST, then R is equidistant from ___ and ___. Thus ___ = _. If K is on the bisector of SRT, then k is equidistant from ___ and ___. If /_S ~/_T, then _~_.