Nice Math Problems
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Nice Math Problems

How would YOU approach this AMC Geometry problem?

Method 3 is my favourite 😊

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This was a problem from the AMC 10 (American Mathematics Competition for students in Years 9 and 10).

All the key information is shown in the diagram above, but here is the problem statement:

In rectangle ABCD, AB = 20 and BC = 10. Let E be a point on edge CD such that ∠CBE = 15°…

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Russell Lim

Russell Lim

1.5K Followers

I teach high school mathematics in Melbourne, Australia. I like thinking about interesting problems and learning new things.