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ko có hình chứng tỏ mảnh đất đó ko tồn tại nên diện tích của mảnh đất đó la 2 = 0 m2
sai thôi nha !
s hinh binh hanh la
31 x 21 = 651
s hinh tam giac la
22 x 24,5 :2 = 539
dien h manh vuon do la
651+539=1190
b) 1 m vuong thu duoc so tan dua hau la
15 :10=1,5 =0,015tan
ca manh vuon tren thu hoach duoc so tan dua hau la
0,015x 1190=16,85 tan
dap so 16,85 tấn dưa dấu
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khoanh vao b
bn vẽ hình ra rồi mk giải cho,nhưng sau khi bn đấy vẽ hình xong thì đg k sai cho mk nhé!