If the shape in the diagram rotates about the dashed line, which three-dimensional object will be formed?

Cone

Step-by-step explanation:

Rotation means the circular moment of an object about some axis or center.

In the given figure, the shape is rotated along the dashed line.

The size of the object remains same after rotation.

After rotating about the dashed line, we observe that the object formed is three- dimensional and is in the shape of a cone.

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step-by-step explanation: