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The problem asks for the angle of rotation for an identity rotation around the origin O. The possible answers are 90°, 180°, 270°, and 360°. An identity rotation means that the object ends up in the same position it started.

GeometryRotationTransformationsAnglesGeometric Transformations
2025/4/28

1. Problem Description

The problem asks for the angle of rotation for an identity rotation around the origin O. The possible answers are 90°, 180°, 270°, and 360°. An identity rotation means that the object ends up in the same position it started.

2. Solution Steps

An identity transformation leaves an object unchanged.
A rotation of 360° around any point returns the object to its original position.
Therefore, an identity rotation is a rotation by 360°.

3. Final Answer

(d) 360°

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