# Calculation of effective resistance [closed]

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Six resistors are arranged along the edges of a pyramid as shown below. The values of the resistances are shown in the figure.

How can I find the effective resistance between A and B?

closed with the note: No Effort.
Alternatively, redraw the diagram in 2D as a triangle (ABC) with central point (D), with resistors connecting each pair of points. The resistors around the central point D form a Y or 'star' shape. This can be turned into an equivalent 'delta' $\Delta$ shape using the $Y-\Delta$ or 'star-delta' transform (look  it up). This leaves you with inner and outer triangles, each side being parallel resistors, which is easily reduced further and solved.