S: Ratios and Proportions
C: Scale Factor
A: Similar Figures
L: Missing sides of similar figures
100

Simplify the following ratio:   8/14

GCF = 2

What is 4/7?

100

What is the formula to determine scale factor?

image length/pre-image length

100

True/False

For two shapes to be similar they have to be the same shape, but can have different sizes.

True

100

The following figures are similar.  Find the missing value.  


What is x = 11?

200

Simplify the following ratio:   76/28

GCF = 4

What is 19/7?

200

Find the scale factor of the similar figures (image on the right)


What is 1.5?

200

True/False

Similar figures do not have congruent angles. 

False

200

The following figures are similar.  Find the missing value. 


What is x = 56?

300

Solve the following proportion:



What is x = 2?

300

Find the scale factor of the two similar figures (image on the right)


What is 3?

300
True/False

Similar figures have proportional sides.

True  

300

The following figures are similar.  Find the missing value.  

Hint:  Draw the triangles separately!!

What is x = 18?

400

Solve the following proportion:  


What is x = 8.4 or 42/5?

400

Find the scale factor of the similar figures (image on the right)


What is 1.3?

400

Are these figures similar?


Yes, the corresponding angles are congruent and the sides are proportional

400

The following figures are similar.  Find the missing value.



What is x = 50 feet?

500

Solve the following proportion:



What is x = 21?

500

Find the scale factor of the two similar figures (image uses blue line numbers)


What is 2.75?

500

Are these figures similar?



No, the corresponding angles are congruent, but the sides are not proportional

500

A tree casts a shadow 60 feet long.  At the same time, a nearby 8 foot post casts a 12 foot shadow.  How tall is the tree?

The tree is 40 feet tall.  

M
e
n
u