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\nCan You Solve This Problem For 12 Year Olds In Singapore? 4 Overlapping Circles Puzzle\n

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\nWhat is the area between a large circle and 4 smaller circles as shown in the diagram? The large circle's diameter is 84. This problem was given to primary school students in Singapore. Can you figure it out? Watch the video for a...\nWhat is the area between a large circle and 4 smaller circles as shown in the diagram? The large circle's diameter is 84. This problem was given to primary school students in Singapore. Can you figure it out? Watch the video for a solution. Correction: at 4:48, the middle circle should have a diameter of 42 (the value 41 was a typo, sorry). My blog post for this video Credit for problem solutions 1, 3 and many similar maths problems Thanks to all patrons! Special thanks to: Kyle Shrihari Puranik Marlon Forbes 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 3.9/5 stars on 26 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 2 reviews) \"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 12 reviews. \"Math Puzzles Volume 2\" is a sequel book with more great problems. (rated 5/5 stars on 3 reviews) \"Math Puzzles Volume 3\" is the third in the series. (rated 5/5 stars on 3 reviews) \"40 Paradoxes in Logic, Probability, and Game Theory\" contains thought-provoking and counter-intuitive results. (rated 4.7/5 stars on 10 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 2 reviews)\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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