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Sebuah kubus memiliki panjang rusuk 51 cm, berapa luas permukaan kubus tersebut...?

Rani Maharani

Soal

Sebuah kubus memiliki panjang rusuk 51 cm, berapa luas permukaan kubus tersebut...?

Pembahasan

Luas permukaan kubus dengan panjang rusuk r dapat dihitung dengan rumus:

L = 6r^2

Sehingga untuk kubus dengan panjang rusuk 51 cm, luas permukaannya adalah:

L = 6 x 51^2

L = 15606 cm^2

Jadi, luas permukaan kubus tersebut adalah 15.606 cm^2.

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