IM 67118 information

IM 67118
Clay tablet, IM 67118, mathematical, geometric-algebraic, similar to the Pythagorean theorem. From Tell al-Dhabba'i, Iraq. 2003-1595 BCE. Iraq Museum
Height	11.5 cm
Width	6.8 cm
Created	c. 1770 BC
Discovered	1962 Baghdad, Baghdad Governorate, Iraq
Present location	Baghdad, Baghdad Governorate, Iraq
Language	Akkadian

IM 67118, also known as Db₂-146, is an Old Babylonian clay tablet in the collection of the Iraq Museum that contains the solution to a problem in plane geometry concerning a rectangle with given area and diagonal. In the last part of the text, the solution is proved correct using the Pythagorean theorem. The steps of the solution are believed to represent cut-and-paste geometry operations involving a diagram from which, it has been suggested, ancient Mesopotamians might, at an earlier time, have derived the Pythagorean theorem.