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Consolidate the writing process after the sixth grade of primary school mathematics, and I will adopt the answer when it is clear. . . . . . . . . .
1) once: 2x3.14x60 = 376.8m.

Run 6 laps 376.8X6 = 2260.8m

2) The two paths have the same length.

Description: ① The path length is 3.14x6x2 = 3.14x12.

② The path is three semi-circular arcs with the length of 3.14x2+3.14x4+3.14x6 = 3.14x (2+4+6) = 3.14x/kloc.

Study hard, you will, come on.