Three resistance each of `4Omega` are connected to form a triangle. The resistance between any two terminals is

Three resistances each of 8 Omega are connected to form a triangle. The resistance between any two terminals is

Three resistors of 1 Omega each are connected to form a triangle. The resistance between any two terminals is :

Three resistances, each of 5 Omega , are connected to form a triangle. Calculat the resistance between two ends of any arm.

Three resistances of 2Omega each are connected in a triangle.The resistance between two vertices is