Jawaban:
2.880 cm²
Penjelasan dengan langkah-langkah:
LK = 6 x s x s
= 6 x 12 cm x 12 cm
= 864 cm2
LB = (2xpxl) + (2xpxt) + (2xlxt)
= (2x36x12) + (2x36x12) + (2x12x12)
= 864 cm + 864 cm + 288 cm
= 2.016 cm²
L keduanya = 864 cm² + 2.016 cm²
= 2.880 cm²
Jawab: 1932 cm²
Lp kubus = 5 × s = 5 × 12 = 60 cm²
Lp balok = 2(p × ℓ + p × t + ℓ × t)
= 2 ((36 × 12) + (36 × 12) + (12 × 12))
= 2 (432 + 432 + 144)
= 2 × 1008
= 2016 cm² karena ada yg tertutupi salah satu sisi kubus maka
Lp balok = 2016 - (s kubus)² = 2016 - 12² = 2016 - 144 = 1872 cm²
L total = Lp kubus + Lp balok
= 60 + 1872
= 1932 cm²
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Jawaban:
2.880 cm²
Penjelasan dengan langkah-langkah:
LK = 6 x s x s
= 6 x 12 cm x 12 cm
= 864 cm2
LB = (2xpxl) + (2xpxt) + (2xlxt)
= (2x36x12) + (2x36x12) + (2x12x12)
= 864 cm + 864 cm + 288 cm
= 2.016 cm²
L keduanya = 864 cm² + 2.016 cm²
= 2.880 cm²
Jawab: 1932 cm²
Penjelasan dengan langkah-langkah:
Lp kubus = 5 × s = 5 × 12 = 60 cm²
Lp balok = 2(p × ℓ + p × t + ℓ × t)
= 2 ((36 × 12) + (36 × 12) + (12 × 12))
= 2 (432 + 432 + 144)
= 2 × 1008
= 2016 cm² karena ada yg tertutupi salah satu sisi kubus maka
Lp balok = 2016 - (s kubus)² = 2016 - 12² = 2016 - 144 = 1872 cm²
L total = Lp kubus + Lp balok
= 60 + 1872
= 1932 cm²