Scale Factor

What is the formula for scale factor?

• $\frac{new}{old}$

• $\frac{old}{new}$

Tags

CCSS.7.G.A.1

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

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

Tags

CCSS.8.G.A.3

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

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

Tags

CCSS.8.G.A.3

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 ~ B. What is the scale factor of the dilation of A to B?

• $\frac{4}{3}$

• $\frac{3}{4}$

• 3

• 4

Tags

CCSS.8.G.A.3

ABC ~ XYZ. What is the scale factor of the dilation of ABC to XYZ?

• $\frac{2}{3}$

• $\frac{3}{2}$

• 2

• 3

Tags

CCSS.8.G.A.3

Find the triangle similar to △ABC

• 
• 
• 
• 

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Which figure is similar?

• A

• B

• C

• D

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

The diagram shows a rectangle that is 3 cm by 5 cm in measure. Which is the measure of a rectangle that is similar to the rectangle above?

• 10.5 cm X 17.5 cm

• 6 cm x 8 cm

• 4 cm x 6 cm

• 4.5 cm x 8 cm

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

The diagram below shows a rectangle that is 9 m by 15 m in measure. Which is the measure of a rectangle that is similar to the rectangle above?

• 14 m x 20 m

• 45 m x 75 m

• 18 m x 31 m

• 6 m x 12 m

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6