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# 9-3 Practice Rotations Answer Key

In the fascinating realm of geometry, rotations provide a captivating way to transform shapes while preserving their size and shape. In this comprehensive guide, we delve into the art of rotations, explore their properties, and present a set of practice problems complete with a detailed answer key to reinforce your understanding.

### Unveiling the Dynamics of Rotations

Rotations offer a unique geometric transformation that involves turning a figure around a fixed point while maintaining its characteristics.

### Skill 1: Performing Rotations

Performing a rotation involves specifying the center of rotation, the angle of rotation, and the direction (clockwise or counterclockwise).

### Skill 2: Analyzing Rotated Figures

Rotated figures can be compared to their original counterparts to identify patterns and relationships between corresponding points.

### Solving Practice Problems with Rotations

Let’s apply our knowledge to practice problems:

1. Rotate triangle ABC with vertices A(2, 3), B(4, 1), and C(1, 5) counterclockwise by 90 degrees about the origin. Determine the coordinates of the rotated vertices.
Answer: The rotated vertices are A'(-3, 2), B'(-1, 4), and C'(-5, 1).
2. Given a rectangle with vertices A(2, 2), B(6, 2), C(6, 5), and D(2, 5), perform a clockwise rotation of 180 degrees about the origin. Find the coordinates of the rotated vertices.
Answer: The rotated vertices are A'(-2, -2), B'(-6, -2), C'(-6, -5), and D'(-2, -5).
3. Rotate point P(3, 4) counterclockwise by 270 degrees about the origin. Determine the coordinates of the rotated point.
Answer: The rotated point is P'(-4, 3).

### Mastering Geometric Transformations: Navigating the World of Rotations

As you delve into the realm of rotations, you unlock a visual and conceptual tool to explore the dynamic changes of shapes. This skill extends beyond geometry, finding applications in art, engineering, and computer graphics.

In conclusion, rotations offer a captivating approach to geometric transformations. By understanding the principles of rotations, analyzing rotated figures, and solving practice problems, you equip yourself to confidently navigate various rotation scenarios. Armed with the practice problems and detailed answer key provided in this guide, you’re well-prepared to embrace the intricate world of rotations with confidence.

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