Mathematical problems; A runway is 400 meters, and the competition is only 200 meters. The width is 1.2 meters. Ask them in turn how many meters in advance?

Solution:

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.

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