Dissection of a Pentagon to Almost a Square

show hint

to trapezoid

step 1

step 2

to parallelogram

step 3

to rectangle

step 4

to "square"

step 5

This Demonstration shows a dissection of a pentagon to almost a square.

If the circumscribed circle circumscribing the pentagon has unit radius, the difference between the square root of the area of the pentagon and the length of the line BK (displayed by checking "show hint") is less than 0.0032.