Three resistances each of 4 Ω are connected to form a

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

The two resistances are connected in series and the resultant is connected in parallel with the third resistance.

∴ R' = 4Ω + 4Ω = 8Ω and	1	=	1	+		1	=	3
	R"		8			4		8