Kubus → r = 6 cm
Lihat ∆CAG
sudut antara AC dan AG = sudut CAG
cos CAG
= CA/AG
= r√2 / r√3
= 1/3 √6
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Kubus → r = 6 cm
Lihat ∆CAG
sudut antara AC dan AG = sudut CAG
cos CAG
= CA/AG
= r√2 / r√3
= 1/3 √6