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Verified answer
Diketahui :- Tinggi = 50 cm
- Panjang = 2 × Tinggi
- Lebar = Panjang - 40 cm
Ditanya :
- Luas Permukaan Balok = .....?
Penyelesaian :
- Panjang :
Panjang = 2 × Tinggi
Panjang = 2 × 50 cm
Panjang = 100 cm
- Lebar :
Lebar = Panjang - 40 cm
Lebar = 100 cm - 40 cm
Lebar = 60 cm
- Luas Permukaan Balok :
Lp = 2(pl + pt + lt)
Lp = 2(100 × 60 + 100 × 50 + 60 × 50)
Lp = 2(6.000 + 5.000 + 3.000)
Lp = 12.000 + 10.000 + 6.000
Lp = 22.000 + 6.000
Lp = 28.000 cm²
Maaf Kalau Salah