Penjelasan dengan langkah-langkah:
t = 3/2d
d = 12 cm
t = 3/2 d
t = 3/2 . 12
t = 18 cm
r = 1/2 . d
r = 1/2 . 12
r = 6 cm
lp tanpa tutup
= π x r(r + 2t)
= 3,14 x 6(6 + 2(18))
= 3,14 x 6 x 42
= 791,28 cm²
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Penjelasan dengan langkah-langkah:
t = 3/2d
d = 12 cm
t = 3/2 d
t = 3/2 . 12
t = 18 cm
r = 1/2 . d
r = 1/2 . 12
r = 6 cm
lp tanpa tutup
= π x r(r + 2t)
= 3,14 x 6(6 + 2(18))
= 3,14 x 6 x 42
= 791,28 cm²