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= 2x3,14x6x15
=180x3,14
=565,2
Dik : Tabung tanpa tutup
r = 6 cm
t = 15 cm
π = 3,14
Dit : Luas Tabung
Cara 1 = πr² + 2πrt
(3,14 x 6x6) + (2 x 3,14 x 6 x 15)
(113.04) + (565.2)
= 678,24
Cara 2 = πr(r+2t)
3,14x 6 ( 6 + 2x15)
18,84 (36)
18,84 x 36
= 678,24
Silahkan di pilih yg lebih mudah :)
Jika sudah ngerti beri jawaban tercedas ya :) thanks :)