A cone billet with a height of 9 decimeters is called a cylinder with the same base after melting and casting. The height of the cylinder is () decimeters

A cone billet with a height of 9 decimeters is called a cylinder with the same base after melting and casting. The height of the cylinder is () decimeters

lk42595743,
A cone billet with a height of 9 decimeters is called a cylinder with the same base after melting and casting. The height of the cylinder is (9 × 1 / 3 = 3) decimeters

Volume calculation: a cylinder is 5cm high and 4cm in diameter, a cone is 3cm high and 4cm in diameter

Cylinder: 4 / 2 = 2 square of 2 * 5 * 3.14 = 31.4 cone: 4 / 2 = 2 square of 2 * 3 * 3.14 / 3 = 12.56

A rectangular iron block with a length of 10 cm, a width of 8 cm and a height of 5 cm is melted into a cylinder iron block with a diameter of 20 cm. The height of the cylinder is calculated

Let the height of this cylinder be xcm
10 * 8 * 5 = square of (20 / 2) * x
400 = 100 μ x
X = 4
X is about 12.56 cm

The worker master forged a 6 cm long cylinder billet into a cone. It is known that the bottom area of the cone is twice that of the cylinder billet. How high is the cone?
Write the formula clearly

zyz80516,
The height of a cone is the height of a cylinder: 1 / 2 / 3 = 3 / 2
Cylinder height: 6cm, cone height: 6 × 3 / 2 = 9 (CM)