Câu 4: Trang 136 sách giáo khoa (SGK) toán tiếng anh lớp 4A parallelogram has an area of...

{
"content1": "First, we need to recall the formula for calculating the area of a parallelogram which is base multiplied by height.",
"content2": "Given that the area of the parallelogram is \(\frac{2}{5}\)m2 and the height is \(\frac{2}{5}\)m, we can substitute these values into the formula.",
"content3": "So, the area of the parallelogram is equal to base multiplied by height, which gives us \(\frac{2}{5}\) = base × \(\frac{2}{5}\).",
"content4": "To find the length of the base, we need to isolate the base variable by dividing both sides of the equation by \(\frac{2}{5}\).",
"content5": "After dividing, we get base = \(\frac{2}{5}\) ÷ \(\frac{2}{5}\), which simplifies to base = 1m.",
"content6": "Therefore, the length of the base of the parallelogram is 1 meter."
}