Please help i cannot do it
Materi : Bangun Ruang
Volume
V = π.r².t + p.l.t
V = 3,14 × (2,5)² × 8 + 11 × 7 × 3
V = 7,85 cm × 20 cm² + 77 cm² × 3
V = 157 cm³ + 231 cm³
V = 388 cm³
Luas Permukaan
Lp = Luas Tutup Tabung + Luas Selimut + Luas Permukaan balok ( - luas alas tabung pada bagian tutup tabung )
L = 3,14 × (2,5)² + 3,14 × 5 × 8 + 2( 11.3 + 7.3 ) + 11.7 + 11.7 - 3,14 × (2,5)²
L = 19,625 cm² + 125,6 cm² + 2( 33 + 21 )
Lp = 145,225 cm² + 2( 54 cm² ) + 57,375 + 77
Lp = 145,225 cm² + 108 cm² + 134,375 cm²
Lp = 145,225 cm² + 242,375 cm²
Lp = 387,6 cm²
Semoga bisa membantu
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