Geometry

Ptolemy's theorem

Ptolemy's theorem is a geometric quantity describing the size or shape of an object.

FreeOnlineNo sign-up
e = (ac+bd)/f

What it means

Ptolemy's theorem is a geometric quantity describing the size or shape of an object.

How it works and where it is used

Use this calculation for calculating areas and dimensions of rectangular, trapezoidal, and rhombic regions.