Shrinking and Scaling

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

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

What is the scale factor from ΔDEF to ΔABC?

• 2

• 1/2

• 1.2

• 1.4

Tags

CCSS.7.G.A.1

Matching sides that have the same relative position in in similar figures are called

• Corresponding Sides
• Corresponding Angles
• The Same
• Congruent Sides

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

All angles in similar figures are congruent.  

• True
• False

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Are the following triangles similar? Why or why not?

• Yes. All pairs of corresponding angles are congruent and corresponding sides all have the same scale factor.

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

• Yes because they kind of look the same...or not.

Tags

CCSS.HSG.SRT.A.2

If Mug's coordinates are (x,y) what rule would Slug need to be in order to be similar to Mug?

• (2x 3y)
• (.5x, y)
• (x, 6y)
• (.75x, .75y)

Tags

CCSS.HSG.CO.A.2

What is the scale factor from rectangle 1 to rectangle 2? 

• 2.5
• 3
• 2

Tags

CCSS.7.G.A.1

12. Scale Factor is 4

a. How many times greater is the perimeter?

• 1/4

• 16

• 4

• 1/16

Tags

CCSS.7.G.A.1

The __________ is the number used to multiply the original side lengths to get the image side lengths.

• reduction

• enlargement

• scale factor

• center of dilation

Tags

CCSS.7.G.A.1