Run 200 meters (half a lap) on the 400-meter track.
The second lane is in front of 1 lane [(2-1) *1.2-0.1] * π = 3.456 meters.
The third lane is in front of the second lane (3-2)* 1.2*π=3.770 meters.
The fourth lane is in front of the third lane (3-2)* 1.2*π=3.770 meters.
The fifth lane is in front of the fourth lane (3-2)* 1.2*π=3.770 meters.
The sixth lane is in front of the fifth lane (3-2)* 1.2*π=3.770 meters.
The seventh lane is in front of the sixth lane (3-2)* 1.2*π=3.770 meters.
The eighth lane is in front of the seventh lane (3-2)* 1.2*π=3.770 meters.
I wish you progress in your study! ! !