If a resistor Rx is connected between nodes X and Y, Ry between X and Y, Rz between Y and Z to form a delta connection, then after transformation to star, the resistance at node Z is?

If a resistor Rx is connected between nodes X and Y, Ry between X and Y, Rz between Y and Z to form a delta connection, then after transformation to star, the resistance at node Z is? Correct Answer RzRy/(Rx+Ry+Rz)

After transformation to star, the resistor at node Y is RzRy/(Rx+Ry+Rz) and this resistance lies between Rz, Ry in star connection.
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Related Questions

If a resistor Rx is connected between nodes X and Y, Ry between X and Y, Rz between Y and Z to form a delta connection, then after transformation to star, the resistor at node X is?
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