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r = 14 cm
luaspermukaan tabung = 22/7 × r × r × t
= 22/7 × 14 × 14 × 35
= 21.560
Luas = keliling lingkaran x tinggi
= 2.phi.r x t
= 2. 22/7. 14 x 35cm
= 88 x 35
= 3080cm^2