Triangle Center of Mass 

Use symmetry. If xCM was positioned at x = 2L/3 then by symmetry yCM is positioned at y = H/3. Just have a new coordinate system with origin (L,H) and let the "new" x-axis be pointing in the negative "old" y-direction and the "new" y-axis be pointing in the negative "old" x-direction.

thank you so much!!!

Thank you! This was a great help

But why in internet says 1/3 and not 2/3

great video! thank u so much!!!

thanks! 🧡

Amazing 👍

Density = mass/volume