Materi : Bangun Ruang Sisi Datar
plt = V
10.5.t = 400
50.t = 400
t = 400/50
t = 8 cm
V = πr²t
V = 22/7 × 7² × 10
V = 22 × 7 cm² × 10 cm
V = 154 cm² × 10 cm
V = 1.540 cm³
Lp = 2πr² + πdt
Lp = 2 × 22/7 × 7² + 22/7 × 14 × 10
Lp = 2 × 22 × 7 + 22 × 2 × 10
Lp = 2 × 154 cm² + 22 × 20 cm²
Lp = 308 cm² + 440 cm²
Lp = 748 cm²
Semoga bisa membantu
[tex] \boxed{ \colorbox{navy}{ \sf{ \color{lightblue}{ Answer\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
Jawaban:
volume balok = p x L x t
400 = 10 x 5 x t
400 = 50 x t
= 400 : 50
tinggi = 8 cm
volume tabung = π x r x r x t
= 22/ 7 x 7 x 7 x 10
= 1.540 cm³
luas permukaan tabung = ( 2 x π x r ) x ( r + t )
= ( 2 x 22/7 x 7 ) x ( 7 + 10 )
= 44 x 17
= 748 cm²
Penjelasan dengan langkah-langkah:
maaf kalau salah
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Materi : Bangun Ruang Sisi Datar
Soal Nomor 1
Tinggi Balok
plt = V
10.5.t = 400
50.t = 400
t = 400/50
t = 8 cm
Soal Nomor 2
Volume Tabung
V = πr²t
V = 22/7 × 7² × 10
V = 22 × 7 cm² × 10 cm
V = 154 cm² × 10 cm
V = 1.540 cm³
Luas Permukaan Tabung
Lp = 2πr² + πdt
Lp = 2 × 22/7 × 7² + 22/7 × 14 × 10
Lp = 2 × 22 × 7 + 22 × 2 × 10
Lp = 2 × 154 cm² + 22 × 20 cm²
Lp = 308 cm² + 440 cm²
Lp = 748 cm²
Semoga bisa membantu
[tex] \boxed{ \colorbox{navy}{ \sf{ \color{lightblue}{ Answer\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
Jawaban:
volume balok = p x L x t
400 = 10 x 5 x t
400 = 50 x t
= 400 : 50
tinggi = 8 cm
volume tabung = π x r x r x t
= 22/ 7 x 7 x 7 x 10
= 1.540 cm³
luas permukaan tabung = ( 2 x π x r ) x ( r + t )
= ( 2 x 22/7 x 7 ) x ( 7 + 10 )
= 44 x 17
= 748 cm²
Penjelasan dengan langkah-langkah:
maaf kalau salah