Reduction and Enlargements

What is the difference between a reduction and enlargement? Select ALL that apply.

• Reductions have scale factors that are less than 1; enlargements have scale factors greater than 1.

• Reductions create larger shapes; enlargements create smaller shapes.

• Enlargements have scale factors that are less than 1; reductions have scale factors greater than 1.

• Enlargements create larger shapes; reductions create smaller shapes.

Tags

CCSS.8.G.A.3

The shapes are similar. Find x.

• 8

• 4

• 10

• 12

Tags

CCSS.HSG.SRT.A.2

The shapes are similar. Find y.

• 20

• 8.5

• 11.5

• 17

Tags

CCSS.HSG.SRT.A.2

The shapes are similar. Find z.

• 12

• 8

• 16

• 4

Tags

CCSS.HSG.SRT.A.2

Organize these scale factors into the right categories.

Groups:

(a) Enlargement

,

(b) Reduction

,

(c) Congruent

• 1

• 3/3

• 2/3

• 0.2

• 3.2

• 2.5

• 6/7

• 4

• 1.5

Tags

CCSS.7.G.A.1

If the scale factor is r = 1.5, what is the length of segment AB'?

• 3 cm

• 6 cm

• 6.75 cm

• 10.25 cm

Tags

CCSS.8.G.A.3

If the scale factor is r = 1.5, what is the length of segment AC'?

• 0.5 cm

• 3 cm

• 3.5 cm

• 5 cm

Tags

CCSS.8.G.A.3

If the scale factor is r = 1/4, what is the length of segment OQ'?

• 1 in

• 1.25 in

• 2.5 in

• 4.75 in

Tags

CCSS.7.G.A.1

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

• Congruent

• Vertical

• Similar

• Complementary

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Two objects that are similar will have proportional measurements.

• TRUE

• FALSE

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6