Similar Figures GEO Lab

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

• x = 9
• x = 28
• x = 7
• x = 63

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

• x = 20
• x = 12
• x = 5
• x = 4

The triangles are similar, solve for the question mark.

• 8
• 12.5
• 18
• 24

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

• Congruent
• Vertical
• Similar
• Complementary 

Matching sides are called

• Corresponding Sides
• Corresponding Angles
• The Same
• Congruent Sides

Using a proportion, find the height of the tree.

• x = 0.0625 ft.
• 16 ft
• x = 16 ft.

All corresponding angles in similar figures are congruent.  

• True
• False

Tell whether the two figures are similar. Explain your reasoning. (Hint: are they proportional?)

• Yes, similar because they are the same shape and side lengths are proportional.
• No, not similar because they are the same shape, but side lengths are not proportional.
• Yes, same shape
• No, different sizes

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.

Gwen scans a photo that is 4 in. wide by 6 in. tall into her computer. If she scales the height down to 3 in., how wide should the similar photo be?

• 3 in
• 2 in.
• 4 in
• 1 in