I belive its 18cm,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Answer:
centigram is 'bigger.'
Well, if you look on the metric scale it is apparent that 1 mg = 0.1 (or 1/10) cg suggesting that a milligram is the smaller value.
This is a pythagorean triple --> 3-4-5
Although you notice it is doubled but with the same pattern --> 6-8-10
Thus, the hypotenuse is 10.