Moment of inertia of triangle about tip formula

[RussellJ]

Homework Statement

Calculate the moment of inertia of a 4 blade propeller

Homework Equations

The Attempt at a Solution

I am assuming the propeller blades to be triangles and need a formula for the mass moment of inertia about the tip of each triangular blade. Google hasn't helped thus far. Integration isn't necessary.

 

[RussellJ]

Case closed. I sucked it up and did the integral.