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(Original Catalog No. YBC 7290) 3D featured in the exhibit Ancient Mesopotamia Speaks at the Yale Peabody Museum 6 April 2019 – 30 June 2020.




