Area

Area is a physical Quantity expressing the size of a part of a Surface . The term can also be used in a non-mathematical context to be mean "vicinity".

Surface area is 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 = 10¹² 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

Useful formula

	Regular	"http://wwwinformationdelightinfo/information/entry/octagon" class="copylinks">Octagon
	<math>a</math> Is The	"http://wwwinformationdelightinfo/information/entry/apothem" class="copylinks">Apothem , or the radius of an inscribed circle in the polygon, and <math>p</math> is the perimeter of the polygon
		"http://wwwinformationdelightinfo/information/entry/Rectangle" class="copylinks">Rectangle
		"http://wwwinformationdelightinfo/information/entry/Parallelogram" class="copylinks">Parallelogram (in general)
		"http://wwwinformationdelightinfo/information/entry/Rhombus" class="copylinks">Rhombus
	<math>a</math> And <math>b</math> Are The Lengths Of The Two	"http://wwwinformationdelightinfo/information/entry/diagonals" class="copylinks">Diagonals of the rhombus
		"http://wwwinformationdelightinfo/information/entry/Triangle" class="copylinks">Triangle
	<math>b</math> And <math>h</math> Are The	"http://wwwinformationdelightinfo/information/entry/Base_(geometry)" class="copylinks">Base and Altitude (height), respectively
		"http://wwwinformationdelightinfo/information/entry/Disk_(mathematics)" class="copylinks">Disk or Circle
	<math>r</math> Is The	"http://wwwinformationdelightinfo/information/entry/radius" class="copylinks">Radius
	<math>r</math> Is The Radius And <math>d</math> The	"http://wwwinformationdelightinfo/information/entry/diameter" class="copylinks">Diameter
		"http://wwwinformationdelightinfo/information/entry/Ellipse" class="copylinks">Ellipse
	<math>a</math> And <math>b</math> Are The	"http://wwwinformationdelightinfo/information/entry/semi-major_axis" class="copylinks">Semi-major and Semi-minor axes, respectively
		"http://wwwinformationdelightinfo/information/entry/Trapezoid" class="copylinks">Trapezoid
	Total Surface Area Of A	"http://wwwinformationdelightinfo/information/entry/Cylinder_(geometry)" class="copylinks">Cylinder
	Total Surface Area Of A	"http://wwwinformationdelightinfo/information/entry/Cone_(geometry)" class="copylinks">Cone
	<math>r</math> And <math>l</math> Are The Radius And	"http://wwwinformationdelightinfo/information/entry/slant_height" class="copylinks">Slant Height , respectively
	Total Surface Area Of A	"http://wwwinformationdelightinfo/information/entry/sphere_(geometry)" class="copylinks">Sphere
	Total Surface Area Of An	"http://wwwinformationdelightinfo/information/entry/ellipsoid_(geometry)" class="copylinks">Ellipsoid
		"http://wwwinformationdelightinfo/information/entry/Circular_sector" class="copylinks">Circular Sector
	<math>r</math> And <math> Heta</math> Are The Radius And Angle (in	"http://wwwinformationdelightinfo/information/entry/radians" class="copylinks">Radians ), respectively
		"http://wwwinformationdelightinfo/information/entry/Square_(geometry)" class="copylinks">Square to circular area conversion
	<math>A</math> Is The Area Of The	"http://wwwinformationdelightinfo/information/entry/square_(geometry)" class="copylinks">Square in square units
		"http://wwwinformationdelightinfo/information/entry/Circular" class="copylinks">Circular to square area conversion
	<math>C</math> Is The Area Of The	"http://wwwinformationdelightinfo/information/entry/circle" class="copylinks">Circle in circular units

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