The figure below shows some steps performed to circumscribe a circle about triangle ABC using only a compass and straightedge.

Question

anonymous · Answer

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anonymous · Answer

Which statement about point O must be true?

 The distance from O to vertex B is the radius of the circumscribed circle.

 The median of side AC will also pass through O.

 The altitude of side AC will also pass through O.

 The distance from O to vertex B is the diameter of the inscribed circle.

anonymous · Answer

The distance from O to vertex B is the radius of the circumscribed circle.