# Area Of Regular Polygon Proof

## Description

An illustration showing that the area of a regular polygon is equal to the area of a triangle whose base is equal to the sum of all the sides, and the height a equal to the appotem of the polygon. "The reason of this is that the area of two or more triangles ABC and ADC having a common or equal base b and equal height h are alike."

## Keywords

geometric proof, geometry, proofs, regular polygon area proof, theorem, theorems

## Galleries

## Source:

Albert A. Hopkins *Scientific America: Handy Book Of Facts And Formulas* (New York: Munn & Co., Inc., 1918) 37

Courtesy the private collection of Roy Winkelman