Comparing Shapes

Two objects that are the same shape but not the same size are _______.

• Congruent
• Vertical
• Similar
• Complementary 

Find the length of x

• x = 1
• x = 2
• x = 7
• x = 1/7

Triangle ABC and XYZ are similar.  Use your knowledge of scale factor to find the length of X.

• 20
• 25
• 100
• 40

Find missing side

• 5
• 7
• 9
• 11

All corresponding sides are proportional (same ratio) in similar figures.

• True
• False

What is the scale factor of these similar shapes?

• 10
• 7
• 9
• 11

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

• x = 9
• x = 28
• x = 7
• x = 63

Are the following similar? Why or why not?

• Yes
• No, the corresponding angles are not equal.
• No, the ratios of the corresponding sides are not equal.

The following shapes are similar, the smaller one is the original shape, what is the scale factor? (Tick 2 Options)

• 2

• 3/2

• 1.5

• 2/3

All angles in similar figures are congruent.  

• True
• False