JOURNEY IN AERONAUTICAL
RESEARCH: A Career at NASA Langley Research Center
Monographs in
Aerospace History, Number 12
APPENDIX III
Solution of a High School Geometry
Problem.
[187] This proof was
completed in a high school course on Euclidean geometry. The teacher
had no expectation that anyone could solve it, but I managed to give
a proof of the proposition in 45 steps.