To determine the acreage from a perimeter, the perimeter measurements must offer sufficient information to deduce the area of the enclosed shape. The formula and necessary information differs depending on the shape. Acre... More »

Calculating the area of polygons requires specific formula, while calculating perimeters simply involves the addition of all sides of a polygon. Calculating the perimeter or area of circles and other monogons involve for... More » Math Geometry Shapes

One simple way to calculate the perimeter of a circle is to multiply its radius by two and further multiply the product by pi. You need a ruler and a divider to accomplish this task. More »

To determine acreage, it is necessary to have the square measurements of an area of land. One acre of land equals 43,560 square feet. If "F" equals the number of square feet and "A" the acreage, then the formula to deter... More »

The formula to calculate the square footage of an area that is square or rectangular in shape is length multiplied by width equals the area's square footage. For example, if a rectangular shaped room measures 11 feet in ... More »

There are several methods to find area and perimeter, depending on the shape of the figure. To find the area of a square or rectangle, use this formula: length x width. To find the perimeter, use this formula: (length x ... More » allows users to draw any shape, either freehand or by grid, on a simple grid and calculate both its area and perimeter. More generally, math sites such as and have fac... More » Math Math Calculators