Depends on how big the ruler is. Sizes vary
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100. An ordinary cm ruler is not likely to be long enough.
There are 100 cm in one meter, so 13 meter is way out there. It's about the length of a decent house.
A ruler, and a meter stick.
280 cm 1 meter is 100 cm. 2.8 meter * 100 cm/meter = 280 cm
A cm (centimeter) is a hundredth of a meter, so 100 cm fit in a meter.