QUESTION IMAGE
Question
angle bac measures \\(56^\circ\\)
what is the measure of angle bdc?
\\(28^\circ\\)
\\(34^\circ\\)
\\(56^\circ\\)
\\(112^\circ\\)
<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Inscribed Angle Theorem"
],
"new_concepts": [],
"current_concepts": [
"Inscribed Angle Theorem",
"Circle Geometry"
]
}
</pre_analysis>
<reasoning>
Identify the inscribed angles and their intercepted arc
\[
\angle BAC \text{ and } \angle BDC \text{ are inscribed angles that intercept the same arc, } \overparen{BC}.
\]
Apply the Inscribed Angle Theorem
\[
m\angle BDC = m\angle BAC = 56^\circ
\]
</reasoning>
<answer>
<mcq-option>28°</mcq-option>
<mcq-option>34°</mcq-option>
<mcq-correct>56°</mcq-correct>
<mcq-option>112°</mcq-option>
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Geometry",
"Inscribed Angle Theorem"
]
}
</post_analysis>
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<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Inscribed Angle Theorem"
],
"new_concepts": [],
"current_concepts": [
"Inscribed Angle Theorem",
"Circle Geometry"
]
}
</pre_analysis>
<reasoning>
Identify the inscribed angles and their intercepted arc
\[
\angle BAC \text{ and } \angle BDC \text{ are inscribed angles that intercept the same arc, } \overparen{BC}.
\]
Apply the Inscribed Angle Theorem
\[
m\angle BDC = m\angle BAC = 56^\circ
\]
</reasoning>
<answer>
<mcq-option>28°</mcq-option>
<mcq-option>34°</mcq-option>
<mcq-correct>56°</mcq-correct>
<mcq-option>112°</mcq-option>
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Geometry",
"Inscribed Angle Theorem"
]
}
</post_analysis>