div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader030vdocumentinreader030viewer20220308175b2a4dbe7f8b9abb5b8b49bahtml5page1jpg target=_blank img data-url=16-12x-80-18-19-3x-17-20-loudoun-county-public-2016-11-26-83htmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: 16 12x— 80 18 19 3X+ 17 20 - Loudoun County Public … · 2016-11-26 · 83 Worksheet Proving Parallelograms Practice 83 Show that a Quadrilateral is a Parallelogram loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentinreader030viewer20220308175b2a4dbe7f8b9abb5b8b49bahtml5thumbnails1jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader030vdocumentinreader030viewer20220308175b2a4dbe7f8b9abb5b8b49bahtml5page2jpg target=_blank img data-url=16-12x-80-18-19-3x-17-20-loudoun-county-public-2016-11-26-83htmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: 16 12x— 80 18 19 3X+ 17 20 - Loudoun County Public … · 2016-11-26 · 83 Worksheet Proving Parallelograms Practice 83 Show that a Quadrilateral is a Parallelogram loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentinreader030viewer20220308175b2a4dbe7f8b9abb5b8b49bahtml5thumbnails2jpg width=140 height=200 adivdiv