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Twghmkc_算柱
Author:
梁卓華
GeoGebra
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【案例】2013年安徽高考15题
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
找出對稱軸
判斷球體
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三角函數的性質
硬幣
與三個半圓相切之圓的填滿
P.4 對稱
同旁內角---垂直平行綫
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Similar Triangles
Geometric Mean
Random Experiments
Constructions
Intersection