div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=document2009csecjune-buildingtechnologyconstruction-schoolsreport-and-treads-in-a-stephtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: 2009CSECJune BuildingTechnologyConstruction SchoolsReport €¦ · and treads in a step and Part c ii required them to show how the tread and risers are connected to the strings loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader035fdocumentsusreader035viewer20220816125f87a2e80c8c9171f423602fhtml5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=document2009csecjune-buildingtechnologyconstruction-schoolsreport-and-treads-in-a-stephtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: 2009CSECJune BuildingTechnologyConstruction SchoolsReport €¦ · and treads in a step and Part c ii required them to show how the tread and risers are connected to the strings loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader035fdocumentsusreader035viewer20220816125f87a2e80c8c9171f423602fhtml5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=document2009csecjune-buildingtechnologyconstruction-schoolsreport-and-treads-in-a-stephtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: 2009CSECJune BuildingTechnologyConstruction SchoolsReport €¦ · and treads in a step and Part c ii required them to show how the tread and risers are connected to the strings loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...