The Ancient Egyptians understood the mathematical concepts of geometry, such as determining the surface area and volume of three-dimensional shapes used for architectural engineering, and algebra, such as the false position method, unit fractions, and second-degree (quadratic) equations. Give one specific example of how the Ancient Egyptians performed their mathematics that is not mentioned below:

The use of the calculation of the "seked", which is basically the run over the rise of the pyramid shape.

They used a base 10 system, like we do today, but instead of using numerals, they used different symbols to represent different powers of 10. For example, a single stroke represented