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Verified answer
Kategori soal : matematikaKelas : 7 SMP
Materi : bangun ruang
Kata kunci : tabung
Pembahasan : luas selimut tabung adalah 1.256 cm²
Penyelesain dg cara terlampir
Verified answer
Dik : V = 5024 cm³t = 25 cm
dit : Ls ??
jawab :
♦ V = π × r² × t
5024 = 22/7 × r² × 25
35168 = 22 × 25 × r²
35168 = 550 × r²
63,94 = r²
•dibulatkan
64 = r²
√64 = r
8 cm = r
jadi,
→ Ls = 2 × π × r × t
= 2 × 3,14 × 8 × 25
= 6,28 × 200
= 1256 cm²
jadi Luas selimut tabung adalah 1.256 cm²
semoga membantu....