👉 The isoperimeter of a polygon or polyhedron, in geometry, refers to the perimeter of its boundary. It's defined as the length of any line segment that connects two opposite vertices of the polygon and does not pass through any other vertex. The isoperimetric inequality states that no polygon with an area greater than 2πr^2 can be inscribed within a circle of radius r, where r is its radius. This means that if you have a figure in which all