Selasa, 29 Maret 2011

Kubus




















Volume = r3
Luas permukaan = 6r2
Panjang seluruh rusuk = 12r
Diagonal sisi = AF, BE, AC, BD, DE, AH, BG, CF, DG, CH, EG, FH = r
√2
Diagonal ruang = AG, BH, DF, CE = r √3
Luas bidang diagonal = ABGH, BCEH, EFCD, ADFG, BFDH, AECG =
r2 √2


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