Question

AB is a diameter of a circle, center O.

C is a point on the circumference of the circle, such that ∠CAB = 2 × ∠CBA

What is the size of ∠CBA?

Answer 1

`\angle CBA = (1)/(2) * \angle CAB`

Explanation:

`\angle CAB = 2* \angle CBA\\</p><p> \huge \red{ \boxed{\angle CBA = (1)/(2) * \angle CAB}}`