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Đào Quang Minh
Giới thiệu về bản thân
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7 hình tam giác
3 hình tứ giác
---------------------------------HT------------------------
4862 : ( 127*x*15) = 26
127*x*15 = 4862 : 26 = 187
x*1905 = 187
x = 187 : 1905
x = 187/1905
Tối giản rồi nha
---------------------------------HT-------------------------------
Tổng hai đáy là: 64 x 2 = 128 m
Vì diện tích của thửa ruộng bằng diện tích của mảnh đất hình vuông
Diện tích của thửa ruộng đó là:
32 x 32 = 1024 m2
Chiều cao của thửa ruộng là:
1024 x 2 : 128 = 16 m
Đáp số: 16 m
--------------------------------------HT-----------------------------------
Bài 1 :
1344 : 6 = 224 ; 2868 : 4 = 717 ; 3450 : 5 = 690
Bài 2
3478 + 5620 = 9098
5619 + 3428 = 9047
----------------------------------------HT-------------------------------------
_____ rainy in Hanoi today .
C. It's
------------------------------------HT---------------------------