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Berarti, rusuk kubus = s² + s² = (√32)²
= 2s² = 32
s² = 32/2
s² = 16 ⇒ s = √16 = 4 cm
Jadi, Luas permukaan = 6 x s²
= 6 x 4²
= 6 x 16 = 96 cm²
Semoga membantu :) Jadikan ini yang terbaik yaa..
rummus luas kubus
6XSkuadrat
=6X32
=192