Penjelasan dengan langkah-langkah:
langkah pertama,cari tinggi tabung :
[tex] \boxed{ \bf vol.tab = \pi {r}^{2} t}[/tex]
2.156 = 22/7 × 7 × 7 × t
2.156 = 22 × 7 × t
2.156 = 154 × t
t = 2.156/154
t = 14.
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langkah ke dua cari luas permukaan tabung :
[tex] \boxed{ \bf lp.tab = 2\pi r(r + t)}[/tex]
lp = 2 × 22/7 × 7 ( 7 + 14 )
lp = 2 × 22/7 × 7 × 21
lp = 2 × 22 × 21
lp = 44 × 21
lp = 924
maka, tinggi tabung => 14cm serta
luas permukaan tabung => 924
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Penjelasan dengan langkah-langkah:
☁Penyelesaian☁
langkah pertama,cari tinggi tabung :
[tex] \boxed{ \bf vol.tab = \pi {r}^{2} t}[/tex]
2.156 = 22/7 × 7 × 7 × t
2.156 = 22 × 7 × t
2.156 = 154 × t
t = 2.156/154
t = 14.
------------------------------------------------------
langkah ke dua cari luas permukaan tabung :
[tex] \boxed{ \bf lp.tab = 2\pi r(r + t)}[/tex]
lp = 2 × 22/7 × 7 ( 7 + 14 )
lp = 2 × 22/7 × 7 × 21
lp = 2 × 22 × 21
lp = 44 × 21
lp = 924
------------------------------------------------------
☁Kesimpulan☁
maka, tinggi tabung => 14cm serta
luas permukaan tabung => 924
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☁Pelajari lebih lanjut☁
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☁Detail jawaban☁