Dilations Assessment

A triangle with a perimeter of 36 inches is dilated with a scale factor of 2.  What will be the perimeter of the image?

• 38 in.
• 36 in.
• 72 in.
• 9 in.

A rectangle with an area of 36 square units is dilated with a scale factor of 0.5.  What will be the area of the image?

• 36 square units
• 144 square units
• 18 square units
• 9 square units

Tags

CCSS.7.G.A.1

A triangle with a perimeter of 64 inches is dilated using a scale factor of 0.375.  What is the perimeter of the dilated image?

• 8
• 16
• 24
• 32

Tags

CCSS.7.G.A.1

A trapezoid with side lengths of 12 cm, 5 cm, 6 cm and 5 cm is dilated with a scale factor of 3.5.  What is the perimeter of the dilated image?

• 28
• 84
• 98
• 90

Tags

CCSS.7.G.A.1

A square has its dimensions changed by dilating with a scale factor of 4.  If the perimeter of the image is 128 inches, what was the side length of the preimage:

• 32
• 4
• 16
• 8

Tags

CCSS.7.G.A.1

A parallelogram has sides 16 cm and 11 cm.  What will be the perimeter if the figure is dilated by a scale factor of 1/3?

• 9
• 18
• 27
• 54

Tags

CCSS.7.G.A.1

The area of an original rectangle is 48 square unites.  The area of the dilation is 12 square units.  What is the scale factor used for the dilation?

• 0.5
• 4
• 2
• 0.25

A triangle with a perimeter of 70 inches is dilated with a scale factor of 2.5.  What will be the perimeter of the dilated image in inches?

• 140
• 35
• 105
• 210

Which of the following transformations preserves the orientation of a figure?

• Rotations and translations
• Reflections only
• Translations and dilations
• Translations only

Tags

CCSS.HSG.CO.A.2

Which of the following transformations do NOT preserve size

• Reflections
• Translations
• Rotations
• Dilations

Tags

CCSS.HSG.CO.A.2