The Area of a Trapezoid tablet

A student's mathematical exercise tablet conveying understanding of how to determine the area of a trapezoid. Old Baylonian period. Collection label reads "The area is calculated with the formula A = h (b1 + b2) / 2." Yale Peabody Museum of Natural History, Yale Babylonian Collection, Catalog No. [BC.021355](http://collections.peabody.yale.edu/search/Record/YPM-BC-021355) (Original Catalog No. YBC 7290) 3D featured in the exhibit *Ancient Mesopotamia Speaks* at the Yale Peabody Museum 6 April 2019 – 30 June 2020. Scanned and processed by Yale Institute for the Preservation of Cultural Heritage Digital Imaging Specialist Chelsea Alene Graham using Artec Space Spider and Artec Studio Professional in 2017. Geometry uploaded at 0.15 mm resolution. Source: Objaverse 1.0 / Sketchfab