Go Geometry Problem Geometric Art: Problem 1202: Four Squares. Graphic Design, iPad Apps

The figure below shows four squares AA1BA2, BB1CB2, CC1DC2, and DD1AD2. Prove that the quadrilaterals A1B2C1D2 and B1A2D1C2 are congruent parallelograms.

Geometric art: Four Squares, Two Parallelograms


See also:
Original problem 1202


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