G8 Unit 1 Vocabulary

Front

What is a transformation in geometry?

Back

A transformation is a process that changes the position, size, or shape of a figure. It includes translations, rotations, reflections, and dilations.

Front

What is a translation?

Back

A translation is a type of transformation that slides a figure from one position to another without changing its shape, size, or orientation.

Front

What is a rotation?

Back

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

Front

What is a reflection?

Back

A reflection is a transformation that flips a figure over a line, creating a mirror image of the original figure.

Front

What is a dilation?

Back

A dilation is a transformation that changes the size of a figure but keeps its shape the same, using a scale factor.

Front

What is a rigid transformation?

Back

A rigid transformation is a transformation that preserves the shape and size of a figure, including translations, rotations, and reflections.

Front

What is the difference between enlargement and reduction?

Back

Enlargement increases the size of a figure, while reduction decreases the size of a figure.

Front

What does it mean to reflect across the x-axis?

Back

Reflecting across the x-axis means flipping a figure over the x-axis, changing the sign of the y-coordinates of the points.

Front

What does it mean to reflect across the y-axis?

Back

Reflecting across the y-axis means flipping a figure over the y-axis, changing the sign of the x-coordinates of the points.

Front

What is the result of rotating a figure 90 degrees clockwise?

Back

Rotating a figure 90 degrees clockwise moves each point of the figure to a new position, changing its orientation.