Area and perimeter relationship for different shapes with an inradius
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
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