The most beautiful, best and hardest geometry problems on brilliant.org. This set is still expanding, and sets for other topics are coming soon. Check out my Physics, Algebra and Combinatorics sets as well. Please comment if I should delete anything. Most problems aren't mine. Enjoy solving them!

P.S. Solve as many as you can, but the main thing is to learn something new. Accuracy and quality over quantity!

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Easy Math Editor

`*italics*`

or`_italics_`

italics`**bold**`

or`__bold__`

boldNote: you must add a full line of space before and after lists for them to show up correctlyparagraph 1

paragraph 2

`[example link](https://brilliant.org)`

`> This is a quote`

Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.`2 \times 3`

`2^{34}`

`a_{i-1}`

`\frac{2}{3}`

`\sqrt{2}`

`\sum_{i=1}^3`

`\sin \theta`

`\boxed{123}`

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