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Grade 7 Mathematics 1 1.4
I haven't done math problems for a long time.

Known calculation: total length = 300 *11.4 = 3420cm; Average circumference = (2.3 * 2 * 3.14+5.8 * 2 * 3.14)/2 = 25.43cm;

Total laps = total length/average circumference =3420/25.43= 134.46 laps;

Total thickness = 5.8-2.3 = 3.5cm

Paper thickness = 3.5/ 134.46 = 0.026 cm.