Ratio of Similar Shapes

Triangle ABC and XYZ are similar, ABC is the copy and XYZ is the original shape.  What is the scale factor or multiplier used to make the the smaller one larger?

• 2

• ½

• ⅖

• 5/2

Tags

CCSS.7.G.A.1

Tell whether the two figures are similar. Explain your reasoning.

• Yes, similar because they are the same shape and side lengths are proportional.

• No, not similar because they are the same shape, but side lengths are not proportional.

• Yes, same shape

• No, different sizes

Tags

CCSS.HSG.SRT.A.2

Find the missing side length.

• 9

• 6

• 8

• 7

Tags

CCSS.HSG.SRT.A.2

Solve for X.

• 36

• 27

• 45

• 56

Tags

CCSS.HSG.SRT.A.2

The pair of figures is similar. Find the missing side.

• x = 20

• x = 12

• x = 5

• x = 4

Tags

CCSS.HSG.SRT.A.2

The pair of figures is similar. Find the missing side.

• x = 1

• x = 3

• x = 9

• x = 5

Tags

CCSS.HSG.SRT.A.2

Are these figures similar?

• yes

• no

• i don't know

• not enough information

Tags

CCSS.HSG.SRT.A.2

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

Tags

CCSS.HSG.SRT.A.2

• F
• G
• H
• I

Tags

CCSS.7.G.A.1

Two similar cones have a scale factor of 8/27. What is the ratio of their volumes?

• 2/3

• 64/729

• 512/19683

• 8/27