Dilations and Similarity

What is the height of the Tree?

• 20
• 15
• 30
• 10

Tags

CCSS.HSG.SRT.B.5

If two figures are similar their angles are______.

• proportional
• congruent
• supplementary
• complementary

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

If two figures are similar, the corresponding sides are ______________.

• equal
• congruent
• proportional
• none of these

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What happens to a figure when it is dilated by a scale factor of a positive integer?

• it becomes smaller
• it becomes larger
• it stays the same

Tags

CCSS.8.G.A.3

What happens to a figure when it is dilated by a scale factor of a fraction less than 1?

• it becomes smaller
• it becomes larger
• it stays the same

Tags

CCSS.8.G.A.3

Jimmy and his sister each bought a plot of rectangular land to build a house. Jimmy's land was 150 ft by 100 ft. His sister's land was 75 ft by 50 ft. What is the scale factor of Jimmy's land compared to his sister's?

• 1/2 the size

• 2 times the size

• 2/3 the size

• 3 times the size

Tags

CCSS.7.G.A.1

Susie and Emily are each going to paint a mural on their bedroom wall.  Susie uses up most of the wall for her mural of the solar system.  It turns out to be 10 ft by 12 ft of wall space. Emily paints a small picture of a cow grazing in the field.  It only takes up one-fifth of the amount of wall space Susie used.  What are the dimensions of Emily's mural?

• 50 feet by 60 feet
• 5 feet by 6 feet
• 2 feet by 2.4 feet
• 20 feet by 24 feet

Tags

CCSS.7.G.A.1

What is the algebraic rule for the dilated image?

• ( x , y ) --> ( 3x, 3y )
• ( 3x, 3y ) --> ( x , y )
• (x , y) --> (0.3x , 0.3y)
• ( x , y ) --> ( 2x, 2y )

Tags

CCSS.HSG.CO.A.2

Choose the correct scale factor:

• 2
• 3
• 1/3
• 1/2

Tags

CCSS.8.G.A.3

Which of the following rules represents a dilation?

• (x, y) → (x, 3y)

• (x, y) → (3x, 3y)

• (x, y) → (x - 4, y - 3)

• (x, y) → (.5x, .4y)

Tags

CCSS.8.G.A.3