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 translation in geometry?

Back

A translation is a type of transformation that moves every point of a figure the same distance in the same direction, defined by a vector.

Front

Back

Front

What is a reflection in geometry?

Back

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

Front

What is the effect of a 90-degree rotation counterclockwise about a point?

Back

A 90-degree rotation counterclockwise about a point turns the figure 90 degrees in the counterclockwise direction around that point.

Front

How do you determine the scale factor of a dilation?

Back

Front

What is the difference between a reduction and an enlargement in dilation?

Back

A reduction occurs when the scale factor is between 0 and 1 (0 < k < 1), making the image smaller. An enlargement occurs when the scale factor is greater than 1 (k > 1), making the image larger.

Front

Back

Front

What is the result of reflecting a figure in two intersecting lines?

Back

Reflecting a figure in two intersecting lines is equivalent to rotating the figure about the point of intersection of the lines.

Front

What is the relationship between rotation and reflection in transformations?

Back

Rotation can be seen as a composition of two reflections over intersecting lines, where the angle of rotation is twice the angle between the lines.