Talk:Geometry/Quadrilaterals

Given lengths all 4 unequal sides how to find the area. I do not know any of the angles or diagnol.
 * I'm pretty sure that's an underspecified problem. Knowing the lengths of all four sides of a quadrilateral is not enough information to set its shape (the angles can vary).  As the shape changes, so does the area. --Jomegat (talk) 18:55, 11 July 2008 (UTC)