Dilations (and other transformations) Homework

Front

A dilation always produces a similar figure. Similar figures have the same ______ but different ______.

Back

shape; sizes

Front

The __________ is the ratio of a length of the new figure to the corresponding length on the original figure.

Back

scale factor

Front

Reflect the point (2, -4) over the y-axis.

Back

(-2, -4)

Front

The side of a triangle is originally 6 cm. The side length after a dilation is 15 cm. What was the scale factor?

Back

2.5

Front

If the scale factor is less than one, the new figure will be

Back

a reduction

Front

What is the effect of a scale factor greater than 1 on a figure?

Back

It enlarges the figure.

Front

What is the center of dilation?

Back

The fixed point in a dilation from which all points are expanded or contracted.

Front

If a figure is dilated by a scale factor of 1, what happens to the figure?

Back

It remains the same size.

Front

What is the scale factor if a rectangle's length changes from 4 cm to 8 cm?

Back

2

Front

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

Back

Reflection