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作者 vincent1985 在 PTT [ Math ] 看板的留言(推文), 共5則
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Re: 小學容積問題
[ Math ]6 留言, 推噓總分: +1
作者: Honor1984 - 發表於 2018/02/23 23:09(6年前)
2F推vincent1985: 先解釋傾斜狀態兩側邊長相加=水平側邊*202/24 01:52
3F→vincent1985: 左+右=8*2=1602/24 01:52
4F→vincent1985: 然後畫一條與杯底水平線形成一等腰三角形02/24 01:54
5F→vincent1985: 由於等腰三角形 b邊上半段=10 b邊下半段由於平行線02/24 01:54
6F→vincent1985: 會=a 最後a=(16-10)/2=3 b=16-3=1302/24 01:55
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