Mathematics, 17.03.2021 23:50 elawnnalewis7486

The diagram shows a circle with centre O. A, B & C lie on the circumference of this circle.
Given that AC is a diameter of the circle and ∠BCA = 3 × ∠BAC, find the size of ∠BCA as highlighted in the diagram.

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The diagram shows a circle with centre O. A, B & C lie on the circumference of this circle.