8cm = 80mm
80mm/2mm = 40 times greater
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There are 10 mm in a cm, so 8 cm in equivalent to 80 mm. 80 mm / 2 mm = 40. Therefore, 8 cm is 40 times as long as 2 mm.
1 m = 100cm100/20= 5 times.
3.5 cm is 5 times as long as 7 mm, and 4 times longer than 7 mm.
To convert 10 cm to mm, we need to multiply by 10 (since 1 cm = 10 mm). So, 10 cm is equal to 100 mm. Adding the 2 mm gives us a total of 102 mm. Therefore, the fraction for 10 cm and 2 mm is 102/10, which simplifies to 51/5.
12 cm long