Find Scale Factor

A circle is being dilated by a scale factor of 1/4. What would we multiply the OLD area by to get the NEW area?

• 1/16

• 1/8

• 1/2

• 1/4

Tags

CCSS.7.G.A.1

A rectangle is being dilated by a scale factor of 3.5. What would we multiply the OLD area by to get the NEW area?

• 7

• 3.5

• 12.25

• 15

Tags

CCSS.7.G.A.1

A rectangle is being dilated by a scale factor of 7/2. What would we multiply the OLD perimeter by to get the NEW perimeter?

• 7/2

• 3

• 14/4

• 49/4

Tags

CCSS.8.G.A.3

A rectangle is being dilated by a scale factor of 2. If we want to know the new perimeter, what would we multiply the OLD perimeter by?

• 1/2

• 4

• 2

• 8

Tags

CCSS.8.G.A.3

A circle is being dilated by a scale factor of 3. What would be multiply the OLD area by to get the NEW area?

• 3

• 9

• 1/3

• 27

Tags

CCSS.7.G.A.1

A rectangle is dilated by a scale factor of 2/3. What would we multiply the OLD area by to get the NEW area?

• 1/3

• 4/6

• 2/3

• 4/9

Tags

CCSS.7.G.A.1

What is the scale factor?

• 4

• 25

• 5

• 6

Tags

CCSS.7.G.A.1

What is the scale factor from triangle ABC to triangle DEF?

• 1/2

• 7/3

• 2/1

• 10/3

Tags

CCSS.7.G.A.1

Find the scale factor of the enlargement from X to Y

• 1/2

• 3

• 2

• 4

Tags

CCSS.7.G.A.1

A scale factor greater than one will ______________ the size of the shape.

• Increase

• Decrease

Tags

CCSS.7.G.A.1