👉 In mathematics, an insheathed (or simply sheathed) shape is a geometric figure that is entirely contained within another shape. In other words, it encloses all of its boundaries without overlapping or intersecting with any other shapes. For example: - A square is insheathed by itself and the four right angles. - An octagon is insheathed by itself and the two adjacent diagonals. These shapes are often used in geometry to represent geometric figures that are enclosed within another shape

insheathed