the ancient Egyptians method for Calculating circle area
in Egypt 1650 years BC, the mathematical papyrus of ancient Egypt was written, this papyrus provides the most information about Egyptian mathematics. Papyrus scroll length is 5.6 meters and width 33 cm.
In this article we will review the method of calculating circle area as it described in the papyrus
Given a circle whose diameter d, we can block this circle by square with the same side length as the circle diameter: d , if we divide this square into nine squares by dividing the length of each side to three equal parts then circle area (approximately) equal to the area of eight-sided polygon we receive after removing the four corners of the big square which are isosceles triangles
Try to estimate the error in calculating an approximation of π what the Egyptians used this method.
the ancient Egyptians method for Calculating circle area