Parts in Similar Triangles and Similarity Transformations

The ratio of the lengths of two corresponding sides of two similar polygons is called the _______ .

• equivalency

• congruency

• similarity

• scale factor

• A

• B

• C

• D

How do these triangles appear to be similar?
(Hint: Look for non-labeled parts!)

• AA

• SAS

• SSS

• Not Similar

If a tree casts a 24-foot shadow at the same time that a yardstick casts a 2-foot shadow. Find the height of the tree.

• 36 ft

• 33 ft

• 30 ft

• 28 ft

Which of the following is true about similar triangles?

• There corresponding sides and angles are congruent.

• There corresponding sides are congruent and their corresponding angles are not congruent.

• There corresponding sides are in proportion and their corresponding angles are not congruent.

• There corresponding sides are in proportion and their corresponding angles are congruent.

Which of the following similarity transformations is not a rigid motion?

• translation

• reflection

• rotation

• dilation

Determine whether the triangles are similar.

• SSS

• AA

• SAS

• not similar

How do these triangles appear to be similar?

• AA

• SAS

• SSS

• Not Similar

Determine if the triangles shown are similar. If so, select the similarity criteria used.

• Not similar

• Similar by AA

• Similar by SSS

• Similar by SAS

Find the missing length.

• 55

• 68

• 52

• 50