Geometer's Calculation is a term used to describe the calculation of AREA. It is a branch of mathematics that deals with the measurement of two-dimensional shapes and surfaces. Geometers use formulas to calculate the AREA of a given shape, such as a triangle or a circle. The AREA of a shape is determined by multiplying its length and width. Geometer's Calculation is an important tool in many fields, including engineering, architecture, and construction.