Question

Find the centre of a circle passing through the points (6, – 6), (3, – 7) and (3, 3).

Answer 1

Let A (6, –6), B (3, –7) and C (3, 3) be the points on the circle and the centre of the circle be P (h, k).

∴ PA = PB = PC  (Radius of the circle)

Thus, the centre of the circle is (3, –2).