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t = 14 cm
maka,
V kerucut
= 1/3 x phi x r² x t
= 1/3 x 22/7 x 7,5 x 7,5 x 14
= 825 cm^3
V = 1/3 x 22/7 x 15 x 14
V = 1/3 x 22/7 x 210
V = 1/3 x 22 x 30
V = 10 x 22
V = 220 cm^3