18 40 The circumcenter is equidistant from the of a triangle

18 40. The circumcenter is equidistant from the of a triangle? 41. The orthocenter of a triangle is the point of concurrency of which lines? 42. The incenter is equidistant from the of a triangle? 43. Write a congruence statement for these triangles, and name the postulate or theorem that supports it

Solution

40) The circumcenter is equidistant from the vertices of the triangle.

41) The orthocenter is the point of concurrency of the altitudes.

42) The incenter is equidistant from the sides of the triangle. (where the angular bisectors meet the side)