A cylindrical part with a bottom radius of 1 decimeter and a height of 8 decimeters is fused into a conical part with a bottom radius of 2 decimeters and a bottom diameter of 2 decimeters What's the height of the conical part? What's the formula

Cylinder volume: 3.14 × 1 & # 178; × 8 = 25.12 cubic decimeter
The height of conic with bottom radius of 2 decimeters: 25.12 △ 1 / 3 △ 3.14 × 2 & # 178;) = 75.36 △ 12.56 = 6 decimeters
The height of cone with bottom diameter of 2 decimeters: 25.12 △ 1 / 3 △ 3.14 × 1 & # 178;) = 24 decimeters
Or 8 △ 1 / 3 = 24 decimeters

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