Show analytically that the perpendicular bisectors of the sides of a triangle are concurrent.

Prove that the perpendicular bisectors of the sides of triangle are concurrent.

Show that the perpendicular bisectors of the sides of the triangle with vertices (7, 2), (5, -2) and (- 1, 0) are concurrent. Also find the co-ordinates of the point of concurrence (circumcentre).

Using vectors, show that the medians of a triangle are concurrent.

Prove analytically that the altitudes of a triangle are concurrent.

Prove analytically that the : medians of a triangle are concurrent.

The equation of the perpendicular bisector of the side AB of a triangle ABC is x - y + 5 = 0. If the point A is (1,-2), find the co-ordinates of the point B.

Show, by vector method, that the angular bisector of a triangle are concurrent and find its expression for the position vector of the point of concurrency in terms of the position vectors of the vertices.

A perpendicular bisector of line 12.5 cm divides the line into

When do you say that a line is the perpendicular bisector of another line?