Question

which of the following two - dimensional shapes can be rotated to create a sphere? ellipse circle square triangle

Explanation:

When a circle is rotated about its diameter in three - dimensional space, it forms a sphere. An ellipse forms an ellipsoid, a square forms a cylinder or a more complex 3 - D shape depending on the axis of rotation, and a triangle forms a cone or a more complex 3 - D shape when rotated.

Answer:

B. Circle