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固定三角形的條件−題4

Author:Anthony OR 柯志明

Topic:Congruence, Triangles

柯志明香港教育局

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兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
錐體建築師
兩位數加法
判斷球體

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七巧板
test file
學習活動一解的意義
任意四边形各边中点的连线必构成平行四边形.许兴华数学
Slope of a tangent 切線斜率

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Equilateral Triangles
Multiplication
Upper and Lower Sum or Riemann Sum
Cone
Perimeter

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