Jawabanmu

Jawaban paling cerdas!
2014-04-21T17:31:20+07:00
2a² = 8²
a² = 64/2
a = √32
a = √16×2
a = 4√2
luas permukaan = 6 (4√2 × 4√2)
                        = 6 (16×2)
                        = 6×32
                        = 192
6 4 6
2014-04-21T19:03:30+07:00
r√2 8=r√2 , jadi r= 8/√2 x √2/√2 = 8√2/2 = 4√2 lp= 6xrxr = 6 x 4√2 x 4√2 = 192
3 3 3