The Figure Shows Scale Drawings of Four Objects, Each of the Same

Multiple Choice

The figure shows scale drawings of four objects, each of the same mass and uniform thickness, with the mass distributed uniformly. Which one has the greatest moment of inertia when rotated about an axis perpendicular to the plane of the drawing at point P ?

A) A
B) B
C) C
D) D
E) The moment of inertia is the same for all of these objects.