How to make a large trapezoid origami chair

(page 9)

15th picture of large trapezoid origami chair

15.

Apply the valley-fold of the step #14.

Prepare to glue on the region encircled with a dotted circle.

16th picture of large trapezoid origami chair

16.

Glue on the surface according to the step #15.

Prepare to close the left layer.

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