Given: A beam with triangular cross-section (b = 40 mm, h = 50 mm) and length L = 1.0 m is subjected to a point load at its mid-span of P = 6.0 kN. (Note that the neutral axis is located h/3 from the bottom of the beam).

Req'd: Determine the Moment of Inertia I of the beam [mm⁴].