Now, this from here to here A to B 250 m and we have taken somewhere dashed line imaginary one that is your x1, because it will when you draw it will come like this.
ही जी तुटक रेषा आहे तिला x1 म्हणूयात आणि A पासून B पर्यंतचे अंतर 250 m आहे.