Hitulanglah Luar Permukaan Bangun Ruang DI Bawah Ini
~Luas Permukaan
Nomor 1
Lp = 6s²
= 6 × 14cm²
= 6 × 196cm
Lp = 1.176cm²
Nomor 2
Lp = 2 × (pl + pt + lt)
= 2 × (9cm × 13cm + 9cm × 21cm + 13cm × 21cm)
= 2 × (117cm² + 189cm² + 273cm²)
= 2 × 579cm²
Lp = 1.158cm²
Jawaban:
Lp Kubus = 6s^2
= 6 × 14^2
= 6 × 196
= 1.176 cm^2
Lp Balok = 2 (pl + pt + lt)
= 2 (9 × 13 + 9 × 21 + 13 × 21)
= 2 (117 + 189 + 273)
= 2 (579)
= 1.158 cm^2
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