Conical container with a bottom radius of 2 decimeters and a height of 9 decimeters, with a volume of______ Ml

Conical container with a bottom radius of 2 decimeters and a height of 9 decimeters, with a volume of______ Ml

13 × 3.14 × 22 × 9 = 13 × 3.14 × 4 × 9 = 37.68 (cubic decimeter); 37.68 cubic decimeter = 37.68 liter = 37680 ml

The volume of a conical vessel is 15.7 cubic decimeters, which is welded by a sector iron sheet with arc length of 3.14 decimeters. What is the height of the conical vessel?

Hello
Bottom radius 3.14 ÷ (2x3.14) = 0.5dm
Height 15.7 ÷ (1 / 3x0.5x0.5x3.14) = 60dm
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The bottom radius of a cone is 10 cm, the volume is 6.28 cubic decimeters, and the height of the cone is () cm

Chen Xi,
Bottom area: 3.14 × 10 × 10 = 314 (square centimeter)
Cone volume: 6.28 cubic decimeter = 6280 cubic centimeter
Cone height: 6280 × 3 △ 314 = 60 (CM)