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Verified answer
R = √ 216r = 6 cm
jumlah seluruh diagonal
( 12 × 6 ) √ 2
72 √ 2 cm
Bab Bangun Ruang
Kata Kunci : Kubus
^ = pangkat
Volume = 216
s^3 = 216
s = ^3√216
s = 6 cm
Panjang diagonal bidang
= s√2
= 6 √2 cm
Jumlah seluruh diagonal bidang
= 12 . 6√2
= 72 √2 cm