This calculation device functions online, over the Internet, and it performs multiple computations to calculate the area of several geometric figures, simultaneously, with a general area equation: Ag=KALgWg If you want more information on the general area equation see the following: www.TechForText.com/U or left click on these words. The e-book at this website is titled: A Theorem of General and Universal Equations, for Creating Generalized Equations with the Formulas from Mathematics and Physics "" TO USE THIS CALCULATION DEVICE, left click in the white boxes below, and enter numbers for length and width. For calculated results, left click on the CALCULATE BUTTON, or anywhere outside of an input box. NOTE: For some of the calculations, the numbers in the white boxes below are interpreted as a radius, such as for calculations involving circles and ellipses. Enter the Length Enter the Width Section 1) Calculations for three Geometric Figures K = 1 K = PI K = 1/2 This calculation is for the area of a triangle Section 2) Calculations for Any Geometric Figure The numbers you entered in the white input boxes above, are use for the calculations in this section, but you must enter a value for K, in the white input box below. Read the following instructions. In this section, you can enter your own value for K, which can be for the area of most geometric figures, including odd shape figures. You can even calculate the surface areas of certain three-dimensional structures, such as the surface area of a cube or sphere. For example, if you want to calculate the surface area of a sphere or cube enter the same number, in the two white input boxes ABOVE. For a cube enter 6 for K in the white box below. If you want to calculate the surface area of a sphere, enter 12.566370614359 (for 4Pi) in the box below. Thus, you can calculate the area of most geometric figures with this software. However, some complex geometric structures are comprised of two or more simpler geometric figures, and when this is the case, the area of the individual figures must be calculated separately, and added together to obtain the total area of the complex structure. For example, if you want to calculate the surface area of a cube shaped building, with a dome shaped roof, you would calculate the surface area of a cube. Then you would calculate the surface area of a sphere, and divide the results by one half. Then the surface area of the cube would be added to the above to obtain the total surface area of the building. In the white box below, enter the value of K that relates to the area of your geometric figure. ""