Problem 186 of 7
Correct the circle-angle theorem misuse: A student states that a tangent line is perpendicular to any diameter of the circle.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
distinguish central, inscribed, interior, exterior, and tangent cases.
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Error must confuse central, inscribed, interior, exterior, or tangent cases.
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Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Classify the angle or relationship in the diagram.
2. Name the theorem the student incorrectly used.
3. State the correct theorem and why it applies.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Corrections that do not reference the angle type or vertex position.