Geometry H 4.4-4.5 Check-up

Front

What is a congruence transformation?

Back

A congruence transformation is a geometric transformation that preserves the shape and size of a figure, meaning the original figure and its image are congruent.

Front

What is a reflection in geometry?

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 in geometry?

Back

A dilation is a transformation that alters the size of a figure by a scale factor, while maintaining the shape and the center of the figure.

Front

How do you determine the image of a point after dilation?

Back

To find the image of a point after dilation, multiply the coordinates of the point by the scale factor.

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a figure a constant distance in a specified direction.

Front

What is the effect of reflecting a figure over the x-axis?

Back

Reflecting a figure over the x-axis changes the sign of the y-coordinates of the points in the figure.

Front

What is the effect of reflecting a figure over the y-axis?

Back

Reflecting a figure over the y-axis changes the sign of the x-coordinates of the points in the figure.

Front

What is the distance between two parallel lines?

Back

The distance between two parallel lines is the perpendicular distance measured between them.

Front

What happens when a figure is reflected over two parallel lines?

Back

When a figure is reflected over two parallel lines, the distance between the original figure and its final image is twice the distance between the two lines.

Front

What is the result of two consecutive reflections over intersecting lines?

Back

Two consecutive reflections over intersecting lines result in a rotation about the point of intersection.