Similarities and Dilations

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Hamburger sells for 3 pounds for $6. If Alicia buys 10 pounds of hamburger, how much will she pay?

• $30
• $20
• $60
• $10

Solve the proportion:

• 4
• 8
• 14
• 10

Tags

CCSS.7.RP.A.2B

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

• Congruent
• Vertical
• Similar
• Complementary 

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

If the scale factor is greater than one, the new figure will be

• a reduction
• an enlargement
• a scale
• not proportional

Tags

CCSS.7.G.A.1

Find missing side

• 5
• 7
• 9
• 11

Tags

CCSS.7.G.A.1

CCSS.7.G.A.2

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

• 144 feet
• 72 feet
• 36 feet

If the scale factor is less than one, the new figure will be

• an enlargement
• a reduction
• a scale factor
• bigger

Tags

CCSS.7.G.A.1

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½
• ¼
• 4
• 2

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

What is the scale factor?

• 2
• 3/2
• 2/3
• 1/2

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2