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2022-12-18 22:02:50
Độ dài 1 cạnh hình hình vuông ABCD là :
32:4=8 ( cm )
=> Diện tích hình vuông ABCD là :
8 x 8 = 16 ( cm2 )
Vậy diện tích hình vuông ABCD là 16 cm2
2022-12-18 21:57:55
ta thấy : 20213 > 20123
=> -20213<-20123