Hitunglah luas permukaan balok jika diketahui panjang, lebar dan tinggi

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a. 5 cm, 3 cm, 4 cm
b. 4 cm, 2 cm, 3 cm

tolong bantu ya secepatnya​

Hitunglah luas permukaan balok jika diketahui panjang, lebar dan tinggi

Hitunglah luas permukaan balok jika diketahui panjang, lebar dan tinggi

Bagian A

  • Lp = 2 × (pl + pt + lt)
  • Lp = 2 × ( 5 × 3 ) cm + ( 5 × 4 ) cm + ( 3 × 4 ) cm
  • Lp = 2 × ( 15 + 20 + 12 ) cm
  • Lp = 2 × 47 cm
  • Lp = 94 cm²

Bagian B

  • Lp = 2 × (pl + pt + lt)
  • Lp = 2 × ( 4 × 2 ) cm + ( 4 × 3 ) cm + ( 2 × 3 ) cm
  • Lp = 2 × ( 8 + 12 + 6 ) cm
  • Lp = 2 × 26 cm
  • Lp = 52 cm²

:

Soal 1

Lp = 2 times ((p times l) + (p times t) + (l times t))

Lp = 2 times ((5 times 3) + (5 times 4) + (3 times 4))

Lp = 2 times (15 + 20 + 12)

Lp = 2 times 47

Lp = 94 : : {cm}^{2}

Soal 2

Lp = 2 times ((p times l) + (p times t) + (l times t))

Lp = 2 times (4 times 2) + (4 times 3) + (

Lp = 2 times 26

Lp = 52 : : {cm}^{2}