Poke
2020
發(fā)布于 2025-05-21 · 圖片9
高思數(shù)學(xué)二下 10 平面圖形認知
——幾何專題第10講
二年級幾何5 四邊形家族
二年級幾何6 三角形家族
二年級幾何5 周長的計算
二年級幾何7 三角形的三邊關(guān)系
題型:圖形識別(判斷三角形、長方形等圖形)、圖形周長計算(計算組合圖形的周長)、圖形拼接問題(用給定三角形或長方形拼接不同圖形并計算周長)、三角形三邊關(guān)系判斷(判斷給定線段能否拼成三角形)、等腰三角形相關(guān)計算(求等腰三角形周長)
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