Step 8
: Take the bottom flap and fold it over to the top like you see in the picture.
Step 9
: Fold the top corner of the triangle to the left along the green dotted line shown in the figure,then unfold.
Step 10
: Fold the top corner of the triangle to the right along the green dotted line shown in the figure,then unfold.You can see the creases as shown by the dotted green line.
Step 11
: As shown in the figure, the red part of the triangle edge is folded with the green dotted line as the center line, and the yellow part is folded with the green dotted line as the center line.
Step 12
: With the green dotted line as the center line, fold down in the direction of the arrow.
Step 13
: Flip it over and repeat steps 8 to 12. It should look like this when you’re done.