Hi there, I need a help. There're given 4 sensors (any kind of sensor which can transmit&receive signals in order to find a distance between another sensors around there). And we know the position of first sensor, say x1=0, y1=0, and have to find other 3 sensor's position. We can easily find distances between sensors, that's why no need to carry about distances. I just need a help how to find other sensor's position. If you know any useful web sites related to distance/sensors, please leave their URL. thanks in advance. I'll appreciate your help.