Unit 6 Review: Transformations and Angle Relationship

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape to create a new shape, including translations, rotations, reflections, and dilations.

Front

What is a rotation?

Back

A rotation is a transformation that turns a figure around a fixed point, called the center of rotation, by a certain angle.

Front

What is the angle of rotation for a square?

Back

The angles of rotation for a square are multiples of 90°.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in similar positions relative to two parallel lines cut by a transversal.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie between two parallel lines on opposite sides of a transversal.

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

What is the relationship between parallel lines and angles formed by a transversal?

Back

When a transversal crosses parallel lines, several angle relationships are formed, including corresponding angles, alternate interior angles, and consecutive interior angles.

Front

What is the measure of angle 2 if lines A and B are parallel and angle 1 is 90°?

Back

Angle 2 is also 90° because it is an alternate interior angle.

Front

What is the result of a 90° rotation of a line segment?

Back

A 90° rotation does not result in parallel line segments; it changes the orientation of the segment.

Front

What are the angles of rotation that map an image to itself?

Back

The angles of rotation that map an image to itself are multiples of 120°.