On Saturday 14 June 2008 18:24, James Frysinger wrote: > Well, a hectare is 100 square meters. So 200 square hectares would then > be 20 000 square square meters.
A hectare is 10000 square meters, so 200 square hectares is 2E10 m⁴. The quartic millimeter is used in statics, but as there is no name for the quartic meter other than the quartic meter, and deci- and centi- are avoided, the quantities are usually written as n×10⁶ mm⁴, which is the usual order of magnitude. Pierre
