Similarity

State the coordinate of the image of the given point B (-10,-6) under a size change given scale factor of 1/2.

• (5,3)
• (20,12)
• (-20,-12)
• (-5,-3)

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

• 2

• 3

• 1/3

• 1/2

A size change is which of the following: 

• only an enlargement
• only a reduction
• Either an enlargement or a reduction
• Neither an enlargement or a reduction

A size change produces a similar figure.

• True

• False

When a size change has a scale factor greater than one, the dilation is an enlargement.

• True
• False

When the scale factor of a size change is less than one, the size change is a reduction.

• True
• False

What is the value of x?

• x = 4

• x = 6

• x = 3

• x = 2

Solve the proportion.

• p=31.3
• p=308
• p=924
• p=532

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.

• 
• 
• 
•