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Isosceles Right Triangles (Posted on 2005-10-19) Difficulty: 3 of 5
Let BAC be an arbitrary triangle with external squares ABIJ, BCKL, and CAMN. IBLP, KCNQ, and MAJR are parallelograms. Prove that PAQ, QBR, and RCP are isosceles right triangles.

See The Solution Submitted by Bractals    
Rating: 3.2500 (4 votes)

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re: Parting shot | Comment 6 of 10 |
(In reply to Parting shot by McWorter)

I thought it was PA that was equal and orthogonal to AQ (PAQ an isosceles right triangle).
  Posted by Charlie on 2005-10-26 14:55:59

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