Oke last quiz for today!

Jawaban:

1.

Volume: 15 × 10 × 7 = 150 × 7 = 1050 cm³

Luas permukaan

= 2 ( 15 × 10 + 15 × 7 + 10 × 7 )

= 2 ( 150 + 105 + 70 )

= 2 ( 325 )

= 650 cm²

2.

a. Volume = r × r × r = 21 × 21 × 21 = 9261 cm³

b. Luas alas: s × s = 21 × 21 = 441 cm²

Maaf jika salah semoga membantu

Jawaban:

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✏Penyelesaian~

== Diketahui :

• 1. p : 15cm, l : 7cm, t : 10cm
• 2. s : 21cm

== Ditanya???

• 1) A. Volume, Luas Permukaan Balok?
• 2) A. Volume, Luas Alas Kubus?

—————————————-

1.

A. Volume Balok.

• V = p x l x t
• V = 15 x 7 x 10
• V = 105 x 10
• V = 1.050cm³

B. Luas Permukaan Balok.

• Lp = 2 x (p x l + p x t + l x t)
• Lp = 2 x (15 x 7 + 15 x 10 + 7 x 10)
• Lp = 2 x (105 + 150 + 70)
• Lp = 2 x (255 + 70)
• Lp = 2 x (325)
• Lp = 650cm²

2.

A. Volume Kubus.

• V = s x s x s
• V = 21 x 21 x 21
• V = 441 x 21
• V = 9.261cm³

B. Luas Alas Kubus.

• La = s x s
• La = 21 x 21
• La = 441cm²

—————————————-

Kesimpulan

• 1. V = 1.050cm³, Lp = 650cm²
• 2. V = 9.261cm³, La = 441cm²

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Detail Jawaban

Mapel: Matematika

Materi: Bab 8 – Bangun Ruang

Kelas: 8SMP

Kode Soal: 2

Kode Kategorisasi: 8.2.8

Kata Kunci: Volume, Luas Permukaan Balok, Volume, Luas Alas Kubus

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