When a rectangle is rotated about the y-axis, the three-dimensional figure that is formed is a cylinder. The rotation creates a cylindrical shape where the height of the cylinder corresponds to the height of the rectangle, and the circular cross-section is derived from the width of the rectangle as it moves around the y-axis.
If a rectangle is rotated about the y-axis as shown below, what three-dimensional figure would be formed?
An image of a rectangle centered at the origin is shown with an arrow showing motion about the y axis.
Rectangular prism
Cone
Cylinder
Square pyramid
1 answer