Square of resistors within a circuit. What is the equivalent

[joahe]

Homework Statement

Homework Equations

-We can re-arrange circuit components into simpler orientations as long as the components' connections to previous nodes are maintained.

The Attempt at a Solution

-I attempted to re-arrange the loop of three resistors at the upper left region to no avail. Where did that intersecting node in the solution come from? There is no such node in the original question, where all three resistors are connected.

 

[The Electrician]

Go read this: https://en.wikipedia.org/wiki/Y-Δ_transform

 

[joahe]

Go read this: https://en.wikipedia.org/wiki/Y-Δ_transform

Thank you! Helps a lot