Jawab: 816 cm²
Penjelasan dengan langkah-langkah:
Luas permukaan balok tanpa tutup = Luas alas + 4(Luas sisi)
L = (12x12)+(4x12x14)
= 144 + 672
= 816 cm²
Opsi B
Lp = Luas alas + 4 × ( Luas sisi )
Lp = ( 12 × 12 ) + ( 4 × 12 × 14 )
Lp = 144 + ( 48 × 14 )
Lp = 144 + 672
Lp = 816 cm²
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Jawab: 816 cm²
Penjelasan dengan langkah-langkah:
Luas permukaan balok tanpa tutup = Luas alas + 4(Luas sisi)
L = (12x12)+(4x12x14)
= 144 + 672
= 816 cm²
Opsi B
Lp = Luas alas + 4 × ( Luas sisi )
Lp = ( 12 × 12 ) + ( 4 × 12 × 14 )
Lp = 144 + ( 48 × 14 )
Lp = 144 + 672
Lp = 816 cm²