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1/3 × L.A × t
1/3 × (22/7 × 3,5 × 3,5) × 12
(22/2 × 3,5) × 4
(11 × 3,5) × 4
38,5 × 4
154
Jadi, volume kerucut adalah 154 cm³.
volume = 1/3 x La x t
= 1/3 x π x r² x t
= 1/3 x 22/7 x 3,5 x 3,5 x 12
= 22/7 x 3,5 x 3,5 x 4
= 11 x 3,5 x 4
= 154 cm³
jawabnnya 154 cm²