Area
From the Simple English Wikipedia, the free encyclopedia that anyone can change
Area is the amount of space a two dimensional (flat) object takes up. It is useful because it is how much of a material is needed to make an empty object; for example, how much wood is needed to make a wardrobe.
Different shapes have different ways to find the area.
- Area of a rectangle is the length of any two adjacent sides multiplied together. In other words, length times width
- Area of a triangle is half of the base multiplied by the perpendicular height. This can be found using the trigonometry formula, A = 1 / 2absinc..
- Area of a circle: A = πr2.
The area under a curve can be found using integration, from calculus.
Some units used to measure area are square mile and square kilometre.
