Transformations

Front

What are congruent geometric figures?

Back

Congruent geometric figures have the same size and same shape.

Front

What transformation occurs when a figure is flipped over a line?

Back

Reflection.

Front

What is the result of a 90° clockwise rotation of a point (x, y)?

Back

The new coordinates will be (y, -x).

Front

What is the result of a reflection across the x-axis for a point (x, y)?

Back

The new coordinates will be (x, -y).

Front

What is the result of a reflection across the y-axis for a point (x, y)?

Back

The new coordinates will be (-x, y).

Front

Does a reflection preserve congruence?

Back

Yes, reflections preserve congruence.

Front

Does a reflection preserve orientation?

Back

No, reflections do not preserve orientation.

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point.

Front

What is the angle of rotation for a 180° rotation?

Back

The figure is turned halfway around, resulting in opposite positions.

Front

What is the effect of a translation on a geometric figure?

Back

A translation slides a figure in a straight line from one position to another without changing its shape or orientation.