Cool lemmas and configurations in Euclidean Geometry

https://youtu.be/CY-vNzhUNHg?si=8W8hviNEwI9cHcIm

This is episode 3 of the completely free euclidean geometry course , we have done very lesser known lemmas, theorems and configurations to tackle weird looking area problems

The lec included

1. Projection theorem

2. Extended projection theorem

3. X configuration

4. Lotus ratio lemma

5. Mass point method