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Ditanya: Volume tabung?
Jawab: Keliling alas = 2 x π x r
44 cm = 2 x 22/7 x r
44 cm = 44/7 x r
r = 44 : 44/7
= 44 x 7/44
= 7 cm
Volume = π x r x r x t
BERITA REKOMENDASI
= 22/7 x 7 cm x 7 cm x 30 cm
= 4.620 cm3
2. Diketahui: V = 2.156 cm3, t = 14 cm
Ditanya: a) d…? b) K…?
Jawab: Volume = π x r x r x t
2.156 cm3 = 22/7 x r2 x 14