div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader040fdocumentpubreader040viewer20220407035dd070f806d5421854452859html5page1jpg target=_blank img data-url=documentcu-39-khi-fru-tam-gic-du-c-tt-cc-canh-bng-a-tinh-the-tch-cahtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: · Câu 39: Khòi fru tam giác dêu có tât các canh bäng a Tinh the tích cùa khôi ling tru dó Câu 40: Sò nghiêm cûa phuvng trinh z 2 i —0 là AO loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader040fdocumentpubreader040viewer20220407035dd070f806d5421854452859html5thumbnails1jpg width=140 height=200 adivdiv