jika luas permukaan tabung 880 cm kuadrat diameter tabung 14 cm hitung lh volume tabung
Matematika
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Pertanyaan
jika luas permukaan tabung 880 cm kuadrat diameter tabung 14 cm hitung lh volume tabung
1 Jawaban
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1. Jawaban Nik001
L permukaan = 880 cm²
d = 14 cm
r = 7 cm
L permukaan = 2 x π x r ( r + t )
880 cm² = 2 x 22/7 x 7 cm ( 7 cm + t )
880 cm² = 44 cm ( 7 cm + t )
7 cm + t = 880 cm² : 44 cm
7 cm + t = 20 cm
t = 20 cm - 7 cm
t = 13 cm
Volume = π x r² x t
= 22/7 x 7 cm x 7 cm x 13 cm
= 2.002 cm³