Triangle Similarity Compendium

Hello Guys!

Triangle Similarity is one of the most beautiful topics in High School and Olympiad Math. A lot of problems on the same have been posted on Brilliant, starting from the popular ones to the completely unnoticed. I have to decided to compile most of them in this note, just for practice and fun. Please pitch in!

This is what you need to do:

Write the name of the problem and link it.

Problems must be from level 3 to 5 only.

Please do take part, thanks a lot!

Swapnil Das

#Geometry

Easy Math Editor

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Markdown	Appears as
`italics` or `_italics_`	italics
`bold` or `__bold__`	bold
- bulleted - list	bulleted list
1. numbered 2. list	numbered list
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# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"	# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"

Math	Appears as
Remember to wrap math in `$` ... `$` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$

Comments

Can we post new problems which are not on Btilliant ?

A Former Brilliant Member - 4 years, 11 months ago

Of course, you can!

Swapnil Das - 4 years, 11 months ago

Traingle Parenting: https://brilliant.org/problems/triangle-parenting/

Andrea Gallese - 4 years, 11 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$