Scale Factors of Shapes

What is the scale factor if the triangle on the left is the original?

• 2

• 3/2

• 2/3

• 1/2

Tags

CCSS.7.G.A.1

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

Tags

CCSS.7.G.A.1

Which of the following is a scaled copy of figure A?

• B

• C

• D

Tags

CCSS.8.G.A.3

What is the scale factor from the large triangle to the small triangle?

• 1/2

• 2/3

• 3/4

• 2

Tags

CCSS.7.G.A.1

In the figure above, a dilation from A to A' has occurred. What is the scale factor?

scale factor = _______

Mathematical Equivalence

ON

Tags

CCSS.8.G.A.3

Match the following dilations by a scale factor of 1/2.

• (-3, -4)

• (6,8)

• (0, -5)

• (10,2)

• (0,0)

• (-6,-8)

• (3,4)

• (0, -10)

• (5,1)

• (0,0)

Answer explanation

Note that 0/2 is still 0

so (0,0) dilated by 1/2 is still at (0,0)

(0,-10) dilated by a 1/2 is at

(0, -5)

Tags

CCSS.8.G.A.3

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

• reduction

• enlargement

• scale

• not proportional

Tags

CCSS.8.G.A.3

Which triangle is similar to the above triangle ?

• A

• B

• C

• D

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

If a Scale Factor is between 0 and 1, then your figure gets...

• Smaller

•  Bigger

• Does not change

Tags

CCSS.8.G.A.3

How many times smaller is the area of the smaller trapezoid compared to the area of the larger trapezoid?

• 4

• 1/4

• 2

• 1/2

Tags

CCSS.7.G.A.1