I thank these people who helped me prove the first step on Twitter:
I know this isn't what you want , but it is the only way that I found pic.twitter.com/GIr4LPO0R4
— ∮ Ahmed Elashraf (@ahmed_elashraf) October 18, 2021
Draw lines OB and OC. Call the intersections of OB and OC with AD E and F, respectively.
Triangle BOC is isosceles (OB = OC)
Angle ABE = Angle DCF (Angles ABC and DCB are both right, from which we subtract OBA and OCB which are equal, leaving equal remainders)
— Scott Rollison (@ScottRollison) October 19, 2021
— Okan Atalay (@OkanAtalay1970) October 19, 2021
Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas!
If you buy from the links below I may receive a commission for sales. (As an Amazon Associate I earn from qualifying purchases.) This has no effect on the price for you.
Book ratings are from June 2021.
My Books (worldwide links)
My Books (US links)
Mind Your Decisions: Five Book Compilation
A collection of 5 books:
“The Joy of Game Theory” rated 4.2/5 stars on 200 reviews
“The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias” rated 4/5 stars on 17 reviews
“40 Paradoxes in Logic, Probability, and Game Theory” rated 4.1/5 stars on 30 reviews
“The Best Mental Math Tricks” rated 4.2/5 stars on 57 reviews
“Multiply Numbers By Drawing Lines” rated 4.1/5 stars on 23 reviews
Mind Your Puzzles: Collection Of Volumes 1 To 3
A collection of 3 books:
“Math Puzzles Volume 1” rated 4.4/5 stars on 75 reviews
“Math Puzzles Volume 2” rated 4.3/5 stars on 21 reviews
“Math Puzzles Volume 3” rated 4.3/5 stars on 17 reviews
2017 Shorty Awards Nominee. Mind Your Decisions was nominated in the STEM category (Science, Technology, Engineering, and Math) along with eventual winner Bill Nye; finalists Adam Savage, Dr. Sandra Lee, Simone Giertz, Tim Peake, Unbox Therapy; and other nominees Elon Musk, Gizmoslip, Hope Jahren, Life Noggin, and Nerdwriter.
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