Three idential rods, each of length `L`, are joined to from a rigid equilateral triangle. Its radius of gtration about an axis passing thorugh a corner and perpendicular to plane of triangle is

Three identical rods, each of length L , are joined to form a rigid equilateral triangle. Its radius of gyration about an axis passing thorugh a corner and perpendicular to plane of triangle is

Three identical rods are joined together to form an equilateral triangle frame. Its radius of gyration about an axis passing through a corner and perpendicular to the plane of the triangle is.

Three rods are arranged in the form of an equilateral triangle. Calculate the M.I. about an axis passing through the geometrical centre and perpendicular to the plane of the triangle (Assume that mass and length of each rod is M and L respectively).

Three indentical thin rods each of mass m and length L are joined together to form an equilateral triangular frame . The moment of inertia of frame about an axis perpendicular to the palne of frame and apssing through a corner is

Three identical roads each of mass M and L are joined to form an equilateral triangle. Find the M.I. about an axis perpendicular to the plane of triangle and passing through ( a ) center of triangle ( b ) mid-point of a rod and ( c ) one vertex of triangle.

Three thin metal rods,each of mas M and length dL,are welded to form an equilateral triangle.The moment of inertia of the composite structure about an axis passing through the centre of mas of the structure and perpendicualr to its plane is :

Three identical rods, each of mass m and length l , form an equaliteral triangle. Moment of inertia about one of the sides is

Three identical rods, each of mass m and length l , form an equaliteral triangle. Moment of inertia about one of the sides is