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PMC 2011-12 Q1
題目一
(a) 圖中的立體圖形(多面體)有多少個面？
(b) 當中有多少面是六邊形？
(可移動紅點move觀察圖形)
Geogebra files for questions 1 and 2 are downloaded from http://dmentrard.free.fr/GEOGEBRA/Maths/Espace/Archimede/MultifilArchiMDn.htm , created by Daniel Mentrard.