Having diagonals that are equal in length, like a rectangle.
From Latin 'aequus' (equal) + Greek 'dia' (through) + 'gonia' (angle, corner). A purely geometric term for shapes with equal diagonals.
Rectangles are equidiagonal because both diagonals are the same length—but a general parallelogram isn't, which is why this property helps mathematicians classify and understand different quadrilaterals.
Complete word intelligence in one call. Free tier — 50 lookups/day.