C-a: If a point is on the perpendicular bisector of a segment, then it is _____________ from the endpoints.
C-b: The shortest distance from a point to a line is measured along the ________________ from the point to the line.
C-c: If a point is on the bisector of an angle, then it is _______________________ from the sides of the angle.
C-d: The measure of each angle of an equilateral triangle is ______ .
C-e: The three angle bisectors of a triangle _____________ .
C-f: The three perpendicular bisectors of the sides of a triangle ___________________ .
C-g: The three altitudes of a triangle ______________________ .
C-h: The three medians of a triangle ______________________ .
C-i: The centroid of a triangle divides each median into two parts so that the distance from the centroid to the vertex is ______________ the distance from the centroid to the midpoint.