Dilations Similarity

What scale factor was used to produce the image?

• 2

• 3

• 1/3

• 1/2

What scale factor was used to produce the image?

• 2

• -2

• ¹/₂

• 1

The two figures are similar. What is the scale factor going from the smaller figure to the larger figure?

• 6/5

• 5/6

• 25/36

• 36/25

Find the measure of x:

• 6

• 24

• 33

• 36

Triangle PQR is the image of triangle JKL after a dilation. Is the dilation an enlargement or a reduction? Explain.

• Enlargement, because the image is larger than the original figure.

• Enlargement, because the image is smaller than the original figure.

• Reduction, because the image is smaller than the original figure.

• Reduction, because the image is larger than the original figure.

The transformation of triangle T to triangle T' is shown.

Select a word and a value to complete the description of the transformation.

Triangle T is ​ (a)   to triangle T'.

Triangle T can be transformed to triangle T' using a dilation with a scale factor of ​ (b)   .

• similar

• 2

• congruent

• 4

If the scale factor is greater than 1, the dilation is (a)  

• an enlargement

• a rotation

• a translation

• a reduction

Which of the statements is true about the graphed triangles?

• They are similar, because one can be obtained by dilating the other about the origin with a scale factor of 2.

• They are similar, because one can be obtained by dilating the other about the origin with a scale factor of 1/2.

• They are not similar, because one can be obtained by dilating the other about the origin with a scale factor of 2.

• They are not similar, because one can be obtained by dilating the other about the origin with a scale factor of 1/2.

Does the image show a Dilation? If yes, did the image enlarge, reduce or none of the above?

• Yes, enlarge

• Yes, reduce

• No

If the scale factor is greater than 1, the dilation is...

• an enlargement

• a rotation

• a translation

• a reduction