A reflexive property in geometry is a property that either has no inverse or the inverse of itself equals to its original object.
For example, a square is also a quadrilateral, which means it’s an angle. This property doesn’t have an inverse (its shape is different, just like flipping a rectangle changes its shape). So it’s effectively reflexive in geometry and mathematics!
This break down would be good for introductory students to grasp the idea of reflexiveness!