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2024-01-23 22:45:59
=5231-2x(456+156)
=5321-2x612
=5321-1224
=4097
2024-01-23 22:23:25
hải minh nguyễn /long/
bạn sai rồi
cạnh hình vuông sao lại là đường kính được
2024-01-23 22:18:30
ta có hình vẽ :/bạn tự vẽ nhé/
ta thấy diện tích tăng thêm là hình bình hành nên chiều cao hình bình hành ban đầu là : 60:8=7.5/m/
diện tích đất khi chưa mở rộng là
7.5x24=180/m2/
Đ/S:180 m2
2024-01-23 22:06:09
thank