Bài 15. Cho hình vuông ABCD có c?nh 4cm. Tính di?n tích ph?n ?ã tô ??m c?a hình vuông ABCD.
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The formula for the area of a square is side length squared. In this case, the side length is 4cm, so the area of the square is 4cm * 4cm = 16cm^2. Show more…
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