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Volume tabung = Luas alas x Tinggi
V = x t
= 22/7 x 7/2² x 4
= 22/7 x 7/2 x 7/2 x 4
= 22 x 7
= 154
b.
Luas selimut tabung = Keliling alas x Tinggi
Luas selimut tabung = 2 r x t
= 2 x 22/7 x 7/2 x 4
= 2 x 22/7 x 7/2 x 4
= 22 x 4
= 88
b. 2 x 22/7 x 7/2 x 4
2 x 22 x 4
88 cm ²