Dilations and Scale Factor Practice

Front

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

Back

shape; sizes

Tags

CCSS.8.G.A.3

Front

Is this an enlargement or a reduction? (Scale factor < 1)

Back

Reduction

Tags

CCSS.8.G.A.3

Front

If a dilation has a scale factor of 3/5, it can be classified as a(n) ___.

Back

reduction

Tags

CCSS.8.G.A.3

Front

If a dilation has a scale factor of 2.33, it can be classified as a(n) ___.

Back

enlargement

Tags

CCSS.8.G.A.3

Front

The point A (8, 12) was dilated to become point A' (2, 3). What was the scale factor? (hint: divide the x-coordinate of the image by the x-coordinate of the preimage)

Back

¼

Tags

CCSS.8.G.A.3

Front

What is a scale factor in dilations?

Back

The ratio of the length of a side of the image to the length of the corresponding side of the preimage.

Tags

CCSS.8.G.A.3

Front

What happens to the size of a figure when the scale factor is greater than 1?

Back

The figure is enlarged.

Tags

CCSS.8.G.A.3

Front

What happens to the size of a figure when the scale factor is less than 1?

Back

The figure is reduced.

Tags

CCSS.8.G.A.3

Front

If a triangle has vertices at (1, 2), (3, 4), and (5, 6), and is dilated by a scale factor of 2, what are the new coordinates?

Back

(2, 4), (6, 8), (10, 12)

Tags

CCSS.8.G.A.3

Front

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

Back

The figure remains the same size.

Tags

CCSS.8.G.A.3