Now there is a 150cm long iron wire, which is welded into a cube frame. There is 6cm left. How long is the edge of the cube frame?

Now there is a 150cm long iron wire, which is welded into a cube frame. There is 6cm left. How long is the edge of the cube frame?

Ridge length sum = 150-6 = 144 cm
Edge length = 144 △ 12 = 12cm