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en.wikipedia.org/wiki/Area

Area is the quantity that expresses the extent of a two-dimensional figure or shape, or planar ... Using these formulas, the area of any polygon can be found by dividing the polygon into triangles. .... the formula over two centuries earlier, and since Metrica is a collection of the mathematical knowledge available in the ancient ...

www.math.com/tables/geometry/areas.htm

(pi = pi = 3.141592...) Area Formulas. Note: "ab" means "a" multiplied by "b". "a2" means "a squared", which is the same as "a" times "a". Be careful!! Units count.

www.mathsisfun.com/area.html

Example: What is the area of this rectangle? Area Count. The formula is: Area = w × h w = width h = height. We know w = 5 and h = 3, so: Area = 5 × 3 = 15 ...

www.science.co.il/formula

Area and Volume Formula for geometrical figures - square, rectangle, triangle, ... Source: Spiegel, Murray R. Mathematical Handbook of Formulas and Tables.

thinkmath.edc.org/resource/area-formulas

Students who have the informal notion that area is the "amount of 2-D 'stuff'" contained inside a region can invent for themselves most of the formulas that they  ...

onlinemschool.com/math/formula/area

This formulas help you answer the questions how to find the area of triangle, square, rectangle, ... Study math with us and make sure that "Mathematics is easy ! ... Rectangle area formulas; Parallelogram area formulas; Rhombus area formulas ...

math2.org/math/geometry/areasvols.htm

Math2.org Math Tables: Areas, Volumes, Surface Areas. (Math). (pi = [pi] = 3.141592...) Areas. square = a2. rectangle = ab. parallelogram = bh. trapezoid = h/2 (b1 + b2). circle = pi r 2 ... [s(s-a)(s-b)(s-c)] when s = (a+b+c)/2 (Heron's formula).

www.mathgoodies.com/lessons/vol1/area_rectangle

The formula is: A = L * W where A is the area, L is the length, W is the width, and * means multiply. square definition A square is a rectangle with 4 equal sides.

www.thoughtco.com/surface-area-and-volume-2312247

Oct 18, 2017 ... In math (especially geometry) and science, you will often need to calculate the surface area, volume, or perimeter of a variety of shapes.