KCET 2018 Physics Solved Paper

Given, moment of inertia of body about X axis IX=20kgm2
Moment of inertia of body about Y axis =IY=25kgm2
Then by perpendicular axis theorem, moment of inertia about an axis perpendicular to the plane is the sum of the moments of inertia of two perpendicular axes through the same point. Therefore
Hence, moment of inertia about an axis perpendicular to the plane of the lamina and passing through the point of intersection of X and Y axes is 45kgm2