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Ambiguity of SSA

ForfatterAnthony OR 柯志明
Drag the red points so that PR = AC, PQ = AB and ∡PQR = ∡ABC. (SSA) Drag R on the dotted line to form the red ΔPQR. Is it possible to make ΔPQR not congruent to ΔABC ?
Anthony Or. GeoGebra Institute of Hong Kong.

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