ae=ad^2/ab=de^2/dc=4√ 17/ 17

BE= 13√ 17/ 17

This is another exercise of will. Although the geometry topic is better, the number calculation is too complicated, and the root number [49 13/( 16*68)] is actually worked out. You must also know 49 13 = 17 3, otherwise you really won't get 65438.

The geometric figures in the following solutions are made accurately in the geometric sketchpad.