Area
''This article explains the meaning of area as a
Physical quantity. Article
area (geometry) is more mathematical.''
Area is a
quantity expressing the size of a region of
space.
Surface area refers to the summation of the areas of the exposed sides of an
object.
Units
Units for measuring surface area include:
:
square metre =
SI derived unit
:
are = 100 square metres
:
hectare = 10,000 square metres
:
square kilometre = 1,000,000 square metres
:
square megametre = 10
12 square metres
Imperial units, as currently defined from the metre:
:square
foot (plural square feet) = 0.09290304 square metres.
:square
yard = 9 square feet = 0.83612736 square metres
:square
perch = 30.25 square yards = 25.2928526 square metres
:
acre = 160 square perches or 43,560 square feet = 4046.8564224 square metres
:
square mile = 640 acres = 2.5899881103 square kilometres
The article
Orders of magnitude links to lists of
objects of comparable surface area.
Cross sectional area of electrical wire
Rough figures for the cross sectional area of copper conductor:
CSA (mm²) diameter (mm) current (A)
1.0 2.8 13
1.5 3.5 17
2.5 4.2 24
4.0 4.8 32
6.0 5.4 41
10.0 6.8 55
16.0 8.0 74
25.0 9.8 97
Category:Physical quantity
be:Плошча
bg:Площ
ca:Àrea
da:Areal
de:Fläche
et:Pindala
el:Έκταση
eo:Areo
fr:Superficie
hr:Površina
is:Flatarmál
lt:Plotas
nl:Oppervlakte
nn:Flatevidd
no:Areal
ja:面積
pt:Área
ru:Площадь
simple:Area
sl:Površina
fi:Pinta-ala
sv:Ytmått
zh:面积