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\nThe 50 Cent Riddle That Stumped Australian Students\n

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\n\nPublisher:\n\nCurated Video\n\n\n
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\nA 50 cent coin has 12 equal sides. If you place two coins next to each other on a table (see video for diagram), what is the angle formed between the two coins? This was asked to 12th grade (age 17 and 18) students in Australia. Many...\nA 50 cent coin has 12 equal sides. If you place two coins next to each other on a table (see video for diagram), what is the angle formed between the two coins? This was asked to 12th grade (age 17 and 18) students in Australia. Many were confused and the math problem went viral after they took their frustration to social media. Can you figure it out? The video presents two methods to solve this problem. The first solution is an example of a semiregular tessellation (thanks to Mathologer for pointing this out) Coverage in the media Thanks to Mathologer for informing me of this puzzle. I referenced his video \"Math is Illuminati confirmed\" in the video. Check out the video and do subscribe to Mathologer If you like my videos, you can support me at Patreon Connect on social media. I update each site when I have a new video or blog post, so you can follow me on whichever method is most convenient for you. My Blog Twitter Facebook Google+ Pinterest Tumblr Instagram Patreon Newsletter (sent about 2 times a year) My Books \"The Joy of Game Theory\" shows how you can use math to out-think your competition. (rated 4/5 stars on 23 reviews) \"The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias\" is a handbook that explains the many ways we are biased about decision-making and offers techniques to make smart decisions. (rated 5/5 stars on 1 review) \"Math Puzzles Volume 1\" features classic brain teasers and riddles with complete solutions for problems in counting, geometry, probability, and game theory. Volume 1 is rated 4.5/5 stars on 11 reviews. \"Math Puzzles Volume 2\" is a sequel book with more great problems. \"Math Puzzles Volume 3\" is the third in the series. \"40 Paradoxes in Logic, Probability, and Game Theory\" contains thought-provoking and counter-intuitive results. (rated 4.9/5 stars on 7 reviews) \"The Best Mental Math Tricks\" teaches how you can look like a math genius by solving problems in your head (rated 4.7/5 stars on 3 reviews) \"Multiply Numbers By Drawing Lines\" This book is a reference guide for my video that has over 1 million views on a geometric method to multiply numbers. (rated 5/5 stars on 1 review)\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Grade
6th - 11th
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Subjects
All Subjects
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Media Type
Instructional Videos
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Source:
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Date
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2019
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Audiences
For Teacher Use
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