Abstract
In this paper, we show that an interesting relationship for a triangle, which is Area/Perimeter = r/2, extends to other shapes with an inradius r (i.e., shapes with an inscribed circle). These shapes include squares, circles, rhombuses, regular polygons, and even irregular polygons and more.
Keywords
geometry, measurement
How to Cite
Kaufman, R., (2022) “Area and perimeter relationship for different shapes with an inradius”, Ohio Journal of School Mathematics 92(1), 27--31. doi: https://doi.org/10.18061/ojsm.4208
Rights
Richard Kaufman