- Construct triangle ΔABC such that AB = 6 cm, AC = 4.5 cm, and ∠BAC = 120°.
- Draw the perpendicular bisectors of sides AB and AC so that they intersect at point O.
- With O as the centre and OC as the radius, draw a circle.
- The required circle passes through points A, B, and C. The radius OC is 5 cm.

