Penjelasan dengan langkah-langkah:
Luas balok = (30×15)×2 + (12×15)×2 + (12×30)×2
= 450×2 + 180×2 + 360×2
= 900 + 360 + 720
= 1980 cm²
luas tabung = ½ × 2 π r (r + t)
= πr(r+t)
= 22/7 × 6 (6+30)
= 22/7 × 6 × 36
= 22/7 × 216
= 678,24
luas gabungan permukaan = 1980 + 678,24
= 2658,24
Mohon koreksi jika ada kesalahan ya☺️
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Verified answer
Penjelasan dengan langkah-langkah:
Luas balok = (30×15)×2 + (12×15)×2 + (12×30)×2
= 450×2 + 180×2 + 360×2
= 900 + 360 + 720
= 1980 cm²
luas tabung = ½ × 2 π r (r + t)
= πr(r+t)
= 22/7 × 6 (6+30)
= 22/7 × 6 × 36
= 22/7 × 216
= 678,24
luas gabungan permukaan = 1980 + 678,24
= 2658,24
Mohon koreksi jika ada kesalahan ya☺️