# Moment of Inertia of a Triangle

Written by Jerry Ratzlaff on . Posted in Classical Mechanics

### Triangle, Solid Plane formula

$$\large{ I_x = \frac {l\; w^3}{12} }$$

$$\large{ I_y = \frac {l^3\; w}{12} }$$

Where:

$$\large{ I }$$ = moment of inertia

$$\large{ l }$$ = length

$$\large{ w }$$ = width