Penjelasan dengan langkah-langkah:
Nomor 1
V = (22/7×(42/2)×(42/2)×30) + (1/3×22/7×(42/2)²×45)
V = (22/7×21×21×30) + (1/3×22/7×21×21×45)
V = (22×3×21×30) + (1/1×22×3×7×45)
V = 41.580 + 20.790
V = 62.370 cm³
Nomor 2
Lp = ((20×10) + (12×10) + (12×15)) + (15×10×2) + (15×10) + (15×15×2)
Lp = 200 + 120 + 180 + 300 + 150 + 450
Lp = 1.400 cm²
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Penjelasan dengan langkah-langkah:
Nomor 1
V = (22/7×(42/2)×(42/2)×30) + (1/3×22/7×(42/2)²×45)
V = (22/7×21×21×30) + (1/3×22/7×21×21×45)
V = (22×3×21×30) + (1/1×22×3×7×45)
V = 41.580 + 20.790
V = 62.370 cm³
Nomor 2
Lp = ((20×10) + (12×10) + (12×15)) + (15×10×2) + (15×10) + (15×15×2)
Lp = 200 + 120 + 180 + 300 + 150 + 450
Lp = 1.400 cm²