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 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 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 identical rods each of mass M, length l are joined to form an equilateral DeltaABC . Find the Moment of Inertia about BC as shown.

Three identical rods each of mass M, length l are joined to form an equilateral DeltaABC . Find the Moment of Inertia about BC as shown.

Radius of gyration of a ring of radius R about an axis passing through its centre and perpendicular to its plane 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