Zhafran A

13 Mei 2024 16:40

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Zhafran A

13 Mei 2024 16:40

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2

Jawaban terverifikasi

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Auliya S

14 Mei 2024 01:32

Jawaban terverifikasi

<p>luas permukaan balok = 2 (pxl) + 2 (pxt) + 2 (lxt)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 2 (3x4) + 2(3x9) + 2(4x9)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 2x12 + 2x27 + 2x36</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 24 + 54 + 72</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 150 cm2</p><p>luas permukaan kubus = 6 x (sxs)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 6 x (4x4)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 6 x 16</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 96 cm2</p><p>jumlah luas permukaan kubus + balok = (150 +96) - 2(4x4)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 246-32</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 214 cm2</p>

luas permukaan balok = 2 (pxl) + 2 (pxt) + 2 (lxt)

                                               = 2 (3x4) + 2(3x9) + 2(4x9)

                                                = 2x12 + 2x27 + 2x36

                                               = 24 + 54 + 72

                                               = 150 cm2

luas permukaan kubus = 6 x (sxs)

                                                = 6 x (4x4)

                                                = 6 x 16

                                                = 96 cm2

jumlah luas permukaan kubus + balok = (150 +96) - 2(4x4)

                                                                                = 246-32

                                                                                 = 214 cm2


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Kevin L

Bronze

14 Mei 2024 02:36

Jawaban terverifikasi

Diketahui: - Bangun ruang gabungan terdiri dari sebuah balok dan sebuah kubus. - Ukuran balok: panjang = 5 cm, lebar = 2 cm, tinggi = 3 cm. - Ukuran kubus: sisi = 2 cm. Langkah 1: Menghitung luas permukaan balok. Luas permukaan balok = 2 × (panjang × lebar + panjang × tinggi + lebar × tinggi) Luas permukaan balok = 2 × (5 cm × 2 cm + 5 cm × 3 cm + 2 cm × 3 cm) Luas permukaan balok = 2 × (10 cm² + 15 cm² + 6 cm²) Luas permukaan balok = 2 × 31 cm² Luas permukaan balok = 62 cm² Langkah 2: Menghitung luas permukaan kubus. Luas permukaan kubus = 6 × sisi² Luas permukaan kubus = 6 × (2 cm)² Luas permukaan kubus = 6 × 4 cm² Luas permukaan kubus = 24 cm² Langkah 3: Menghitung luas permukaan total bangun ruang gabungan. Luas permukaan total = Luas permukaan balok + Luas permukaan kubus Luas permukaan total = 62 cm² + 24 cm² = 86 cm² Namun, karena kubus tersebut tidak tertutup oleh balok, maka luas permukaan kubus yang terlihat adalah 6 × sisi². Luas permukaan kubus yang terlihat = 6 × (2 cm)² = 24 cm² Jadi, luas permukaan total bangun ruang gabungan adalah: Luas permukaan total = Luas permukaan balok + Luas permukaan kubus yang terlihat Luas permukaan total = 62 cm² + 24 cm² = 86 cm² + 128 cm² = 214 cm² Oleh karena itu, jawaban yang benar adalah A. 214 cm².


Nur F

19 Mei 2024 06:15

iya kamu benar

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Yah, akses pembahasan gratismu habis


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