Square Megametre
Square megametre
(symbol
Mm
2
) is an
SI
unit
of
surface area
. It is one of the
SI derived units
. 1 Mm
2
is equal to:
the area of a
square
measuring 1
megametre
on each side
1 000 000 000 000
m
2
100 000 000
hectares
1 000 000
km
2
Square megametres are not widely used; however, there are a number of "megametre fans" who think that this unit is very convenient for measuring
oceans
and
continents
.
1 Mm
2
is the area of
Egypt
The area of
Africa
is 30.2 Mm
2
The total area of the
Moon
's surface is 38 Mm
2
The total area of dry land on
Earth
is 149.8 Mm
2
The area of the
Pacific Ocean
is 179.7 Mm
2
The total area of the
Earth
's surface is 510 Mm
2
See also
Conversion of units
SI
SI prefix
metre
For more examples
1 E12 m
orders of magnitude
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