Dilations and Scale Factor Review

Did the image enlarge, reduce or none of the above?

• Enlarge

• Reduce

• None of the above

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Which of the following transformation will result in an image that is similar, but not congruent, to its original image?

• translation

• reflection

• rotation

• dilatation

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

What is the value of X?

• X=4

• X=6

• X=3

• X=2

Tags

CCSS.HSG.SRT.A.2

All corresponding sides are proportional (same ratio) in similar figures.

• True

• False

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Two objects that are the same shape but not the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary 

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

A triangle has sizes measuring 11 cm, 16 cm, and 16 cm. A similar triangle has sides measuring x cm, 24 cm, and 24 cm. What is x?

• x = 19 cm

• x = 24 cm

• x = 3 cm

• x = 16.5 cm

Tags

CCSS.HSG.SRT.A.2

A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby casts a shadow that measures 24 feet. How tall is the building? (Draw a picture, set up a proportion)

• 24 feet

• 21 feet

• 27 feet

• 32 feet

Tags

CCSS.HSG.SRT.B.5

Tell whether the two figures are similar. Explain your reasoning. (Hint: are they proportional?)

• Yes, similar because they are the same shape and side lengths are proportional.

• No, not similar because they are the same shape, but side lengths are not proportional.

• Yes, same shape

• No, different sizes

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Find the perimeter of the large triangle.

• 24

• 36

• 12

• 54

Dilate point (3, 7) with a scale factor of 4.

• (-1, 3)

• (7, 11)

• (12, 28)

• (28, 12)

Tags

CCSS.8.G.A.3