en.wikipedia.org/wiki/Area

... to find the areas of many common shapes. The areas of irregular polygons can be calculated using the "Surveyor's formula".

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

Free math lessons and math homework help from basic math to algebra, geometry and beyond. Students, teachers, parents, and everyone can find solutions to ...

www.mathgoodies.com/lessons/vol1/area_rectangle.html

is the width, and · means multiply. A square is a rectangle with 4 equal sides. To find the area of a square, multiply the length of one side by itself. The formula is ...

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.virtualnerd.com/pre-algebra/perimeter-area-volume/perimeter-and-area/area/rectangle-area-formula

Virtual Nerd's patent-pending tutorial system provides in-context information, hints, and links to supporting tutorials, synchronized with videos, each 3 to 7 ...

www.science.co.il/formula

Area and Volume Formula for geometrical figures - square, rectangle, triangle, polygon, circle, ellipse, trapezoid, cube, sphere, cylinder and cone.

www.mathexpression.com/formula-for-area.html

Formula for area of a square, rectangle, circle, parallelogram and triangle. Examples and lessons are included.

www.mathopenref.com/squarearea.html

Area of a Square. From Latin: area - "level ground, an open space,". The number of square units it takes to completely fill a square. Formula: Width × Height.

www.mathwarehouse.com/solid-geometry/cylinder/formula-area-of-cylinder.php

Area of cylinder explained with pictures, examples and worked out problems.

www.mathwarehouse.com/geometry/triangles/area

Area of a Triangle tutorial. Pictures, examples and many practice problems on how to find the area of a triangle from its base and its height.