A square with a side length of 4 decimeters, take one side of it as the axis, and rotate the square for one circle to get a square______ What is the volume of this body______ Cubic decimeter

A square with a side length of 4 decimeters, take one side of it as the axis, and rotate the square for one circle to get a square______ What is the volume of this body______ Cubic decimeter

From the rotation of the plane figure, we can see that there is a square with a side length of 4 decimeters. Take one side of the square as the axis, and rotate the square for one circle to get a cylinder. The bottom radius of the cylinder is 4 decimeters, and the height is 4 decimeters. Volume = (3.14 × 42) × 4 = 200.96 (cubic decimeters)