Ratio of Similitude

Choose the correct ratio of similitude/scale factor from the larger image to the smaller image.

• 2

• 3

• 1/3

• 1/2

What is the value of x?

• x = 4

• x = 6

• x = 3

• x = 2

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

• x = 9

• x = 28

• x = 63

• x = 7

Choose the triangle below that is similar to the red triangle.

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The amount of eggs and the cups of cream needed to make egg nog have a proportional relationship. Complete the table.

• 5/1 & 5/1

• 10/2 & 25/5

• 1/5 & 1/5

• 2/10 & 5/25

Objects that have the same shape but different size. 

• Rates/Ratios

• Unit Rate

• Corresponding Parts

• Similarity

• ( 32 , 8 )

• ( 21 , 7 )

• ( 26 , 6 )

• ( 25 , 5 )

Determine whether the figures are similar.

• yes, they are proportional

• no, they are proportional

Are the two ratios proportional?

• YES

• NO

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets