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Mathematics
OpenStudy (anonymous):

Proof Given: Angle APC=Angle BPD Prove: Angle 3 is congruent to Angle 1 1. Statement: Angle APC=Angle BPD Reason: ? 2. Statement: Angle APC=Angle 1+Angle 2 Reason: ? 3. Statement: ? Reasons: Angle Addition Postulate 4. Statement: Angle 1+Angle 2=Angle 2+Angle 3 Reasons: ? 5. Statement: ? Reasons: ? 6. Statement: Angle 3=Angle 1 Reasons: ? 7. Statement: Angle 3 is congruent to Angle 1 Reasons: ?

OpenStudy (anonymous):

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