Formula for the area of a polygon

4*tan(60)

As many planar figures come under the heading of polygon, different shapes have different formulas of finding out the area.

Let me tell you the areas for the most common shapes:

Square: Side*Side

Rectangle: Breadth*Height

Triangle: 1/2 Breadth*Height

Parallelogram: Breadth*Height

Circle: Pie r Square

For a better illustration this website would surely be of help.

www.math.com

Let me tell you the areas for the most common shapes:

Square: Side*Side

Rectangle: Breadth*Height

Triangle: 1/2 Breadth*Height

Parallelogram: Breadth*Height

Circle: Pie r Square

For a better illustration this website would surely be of help.

www.math.com

If the polygon is regular 1/2*apothem*number of sides*side length, or you can divide the polygon into triangles and quadrilaterals and add the areas of those together.