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LP tabung = 2 phi r (r+t)
= 2 x 22/7 × 35 (35 + 65)
= 22.000 cm2 = 2,2 m2
Rp 20.000 × 2,2 = 44.000
jadi, Rp 44.000,00
=2.22/7.35(35+65)
=44.5(100)
=220(100)
=22000 cm²=2,2 m²
harga seng x luas tabung
20.000 x 2,2
Rp44.000