For the blue section shown below determine the orientation o
     For the blue section shown below, determine the orientation of the principal centroidal axes in degrees and the principal centroidal moments of inertia in mm^4. The thickness of each rectangle is 4 mm. Use Mohr\'s Circle. (For theta_p, enter the value with the smallest magnitude.)  theta_p =  degree  I_min =  mm^4  I_max =  mm^4 
  
  Solution
From the above givem data thepa and I can be calculated as ffollows
thetap = 56
Imax= 567 m^6
Imin = 68m^5
IIm

