Please refer to it, hehe ~ ~ ~
[Problem solving process]
① Fold the square paper in half and unfold it, and set the crease as Mn;
(2) superposing point B on the polyline to obtain Rt△AGE;;
③ Fold along the EG paper and get that △EAF is an equilateral triangle?
Opposite width
What does the picture do? Come out and see?
Upload, etc.