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Puzzle of the Week #247 - Diophantine Parallelogram

March 27, 2020 Elliott Line

All of the lines on this diagram are integer lengths.

DE = 13

AD = BD

AB is parallel to CE

AC is parallel to BE

Angle CAD = angle DAB      

What is the length of AD?

parallelogram.JPG
← Puzzle of the Week #248 - QuartetPuzzle of the Week #246 - Ghost Crossword →
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