Last week, a coral reef grew 19.8mm taller. how much did it grow in meters?

Last week the coral reef grew .0196m

Step-by-step explanation:

So it's hard to explain but simply Milli witch is the symbol "m" is a unit prefix in the metric system denoting a factor of one thousandth (10 −3).  So 19.6mm is 19.6*10^-3m.  in other words 19.6 times 10^-3m

hope this helps sorry it's so complicated :/

0.0198 meters.

Step-by-step explanation:

By definition  1,000 mm = 1 meter.

So 19.8 mm = 19.8 / 1000

= 0.0198 m answer).

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.