The circumference of the bottom surface of a cone is 12.56 decimeters, and its height is 20 centimeters. What is its volume cubic decimeters 1. The circumference of the bottom surface of a cone is 12.56 decimeters, and its height is 20 cm. What is its volume cubic decimeters? 2. The bottom radius of the cone is 3cm and the volume is 6.28cm3. What is the height of the cone 3. A cylindrical bucket without cover, with a bottom radius of 5 decimeters and a height of 8 decimeters, at least how much iron sheet does it need to make this bucket? 4. Dig a cylindrical pool with a bottom radius of 4 meters and a depth of 3 meters. Put cement on the ground and four walls. What is the area of cement? If 350 kg of water is used per square decimeter (note unit), how many kg of cement is shared? 5. Unfold the side of a cylinder to get a 15.7 cm square. What is the surface area of the cylinder? 6. The volume sum of a cylinder and a cone with equal base and height is 96 cubic centimeters. What are the volumes of the cylinder and the cone? 7. After a cube container with 4 decimeters long edge is filled with water, pour it into a cone with a bottom area of 12 square decimeters. What's the height of the cone

The circumference of the bottom surface of a cone is 12.56 decimeters, and its height is 20 centimeters. What is its volume cubic decimeters 1. The circumference of the bottom surface of a cone is 12.56 decimeters, and its height is 20 cm. What is its volume cubic decimeters? 2. The bottom radius of the cone is 3cm and the volume is 6.28cm3. What is the height of the cone 3. A cylindrical bucket without cover, with a bottom radius of 5 decimeters and a height of 8 decimeters, at least how much iron sheet does it need to make this bucket? 4. Dig a cylindrical pool with a bottom radius of 4 meters and a depth of 3 meters. Put cement on the ground and four walls. What is the area of cement? If 350 kg of water is used per square decimeter (note unit), how many kg of cement is shared? 5. Unfold the side of a cylinder to get a 15.7 cm square. What is the surface area of the cylinder? 6. The volume sum of a cylinder and a cone with equal base and height is 96 cubic centimeters. What are the volumes of the cylinder and the cone? 7. After a cube container with 4 decimeters long edge is filled with water, pour it into a cone with a bottom area of 12 square decimeters. What's the height of the cone

1. The circumference of the bottom surface of a cone is 12.56 decimeters, and its height is 20 cm. What is its volume? 20 cm = 2 decimeters, 12.56 / 2 / 3.14 = 2 decimeters (bottom radius), 3.14 * 2 * 2 * 2 = 25.12 cubic decimeters (volume). 2. The bottom radius of a cone is 3 cm, and its volume is 6.28 cubic centimeters

The volume of a cone with a base circumference of 6.28 decimeters is 3140 cubic decimeters. What is the height of the cone?

Bottom radius = 6.28 △ 3.14 △ 2 = 1 (decimeter)
Bottom area = 1 & # 178; × 3.14 = 3.14 (decimeter & # 178;)
The height of this cone = 3140 × 3 △ 3.14 = 3000 (decimeter)

The circumference of the bottom surface of a cone is 12.56dm, and its height is 8dm. What is its volume cubic decimeter

Hello, 20010517oyh
3.14 × (12.56 ／ 3.14 ／ 2) & # 178; × 8 × 1 / 3 ≈ 33.49 (cubic decimeter)