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三角形的外角
Autor:
現代中學數學 Modern Secondary Mathematics
Tópico:
Triângulos
探究三角形的外角與內角的關係。 (1B 冊第 3.50 頁適用)
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
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