div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentmathematics-and-origami-unfolding-mathematical-htmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Mathematics and Origami Unfolding Mathematical loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsusreader030viewer202201292061c7c72673ea086439298896html5thumbnails1jpg width=140 height=200 divdiv