Identifying Similar Figures Lesson

​Identifying Similar Figures

​LET'S REVIEW

Multiple Choice

What are similar figures?

• The same shape but a different size

• EVERYTHING IS THE SAME

• A breakfast food

Multiple Choice

Are the triangles similar?

• Yes
• No

Multiple Select

Which of the following are scaled copies of the original portrait? Select ALL the apply.

• A

• B

• C

• D

• E

Multiple Choice

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

• 1/3

• 48

• 4

• 3

​NEW INFORMATION

Similar Figures

• Similar figures are PROPORTIONAL

• They have a scale factor

• You can identify similarities through

• ​Angles in similar figures are EQUAL

• You can determine through MULTIPLICATION and DIVISION​

Multiple Choice

Sides in similar figures are PROPORTIONAL

• True
• False 

Multiple Choice

Are the two triangles similar?

• Yes

• No

• Not Enough Information

Multiple Choice

These two shapes are _____________?

• Congruent
• Similar
• Neither

​TIME TO PRACTICE

Multiple Choice

Are the two triangles similar?

• Yes

• No

• Not Enough Information

Multiple Choice

Are the two triangles similar?

• Yes

• No

• Not Enough Information

Multiple Choice

Sides in similar figures must be proportional.  

• True
• False 

CHALLENGE MODE

Multiple Choice

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

• x = 12
• x = 3
• x = 40
• x = 4

Multiple Choice

Find the missing side

• 5 m
• 7 m
• 9 m
• 11 m

Multiple Choice

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

• x = 1
• x = 3
• x = 9
• x = 5