Stuck on this one Please help THE FIGURE IS NOT DRAWN TO SCA

Stuck on this one. Please help!

THE FIGURE IS NOT DRAWN TO SCALE. The area shown is a (blue) solid trapezoid with two (white) cutouts (holes), one rectangular and one semicircular.

a) Ixx = Ixx _{big_}_rectangle + Ixx _{big_}_triangle - Ixx _{small_}_rectangle - Ixx _semicircle

Ixx _{big_rectangle} = 11.2 * 11.9^3 / 12 + 11.2 * 11.9 * 5.95^2

Ixx _{big_triangle} = 6.8 * 11.9^3 / 12

Ixx _{small_rectangle} = 2 * 3.9^3 /12 + 2 * 3.9 * 3.95^2

Ixx _semicircle = pi * 3^4 / 8

Therefore Ixx = 7082.789 cm^4

b) Iyy = Iyy _{big_}_rectangle + Iyy _{big_}_triangle - Iyy _{small_}_rectangle - Iyy _semicircle

Ixx _{big_rectangle} = 11.9 * 11.2^3 / 12 + 11.2 * 11.9 * 5.6^2

Ixx _{big_triangle} = 11.9 * 6.8^3 / 12 + 0.5 * 11.9*6.8 * 11.2^2

Ixx _{small_rectangle} = 3.9 * 2^3 /12 + 2 * 3.9 * 12^2

Ixx _semicircle = pi * 3^4 / 8 + 0.5 * pi * 3^2 * 6^2

Therefore Ixx = 9293.4485 cm^4