Stretching and Shrinking - Inv. 1 & 2

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?

• 1/2
• 7/3
• 2
• 10/3

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.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

All angles in similar figures are congruent.  

• True
• False

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

Are the following triangles similar? Why or why not?

• Yes. All pairs of corresponding angles are congruent.
• 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

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

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.SRT.A.1

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

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

• 2.5
• 3
• 2

Tags

CCSS.HSG.SRT.A.1

12. Scale Factor is 6
a. How many times bigger is the perimeter?

• 36
• 6
• 1/6
• 1/26

Tags

CCSS.HSG.SRT.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.HSG.SRT.A.1