Geography Reference
In-Depth Information
inch, a light year would be equivalent to about one mile. Used for measurements in interstellar
space.
•
Parsec
: And you thought they made this up on
Star Trek
! The term is a combination of
par
allax
and
sec
ond, and the distance is approximately 3.26 light years. It is used for measurement of in-
terstellar distances.
Metric Measurements
Length
10 millimeters
=
1 centimeter
10 centimeters
=
1 decimeter
=
100 millimeters
10 decimeters
=
1 meter
=
1,000 millimeters
10 meters
=
1 decameter
10 decameters
=
1 hectometer
10 hectometers
=
1 kilometer
=
1,000 meters
Area
100 square millimeters
=
1 square centimeter
10,000 square centimeters
=
1 square meter
100 square meters
=
1 are
100 ares
=
1 hectare
=
10,000 square meters
100 hectares
=
1 square kilometer
=
1,000,000 square meters
Customary U.S. Measures
Length
12 inches
=
1 foot
3 feet
=
1 yard
5-½ yards
=
1 rod
40 rods
=
1 furlong
=
220 yards (660 feet)
8 furlongs
=
1 land (statute) mile
