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# Equations of Lines (Perpendicular / Right Bisectors and Circumcentre)

- 1Given a triangle with vertices A(9,10), B(3,-8) and C(-7,2) find:

a) The equation of the perpendicular bisector of BC.

b) The equation of the perpendicular bisector of AB.

c) The circumcentre of the triangle ABC. - 2Given a triangle with vertices A(-8,3), B(2,-7) and C(10,9) find:

a) The equation of the perpendicular bisector of AC.

b) The equation of the perpendicular bisector of AB.

c) The circumcentre of the triangle ABC. - 3Given a triangle with vertices A(-6,-3), B(10,-11) and C(4,7) find:

a) The equation of the perpendicular bisector of AB.

b) The equation of the perpendicular bisector of BC.

c) The circumcentre of the triangle ABC.

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