(185, 0)
(0, 115)
(0, 0)
Cx
Cy
Question 3 (45 marks):

The section has an area of A = 56165 mm2 and moment of inertia about the x-axis of Ix = 854.2 ×106 mm4.

Determine the moment of inertia, ICx , of the section about its centroidal x-axis.

Determine the moment of inertia, Ix2 , about the horizontal axis defined by the line y = 40 mm and find the radius of gyration, rx2 , about this same axis

Solution:
 
ICx =
X 106 mm6
 
Ix2 =
X 106 mm6
 
rx2 =
mm