Similarity and Transformations

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

• Congruent

• Vertical

• Similar

• Complementary 

Sides in similar figures must be proportional.  

• True

• False 

Are the two figures similar?

• yes

• no

What is ratio of any two corresponding sides?

• Scale Factor

• Corresponding Sides

• Similar Figures

For the dilation, A is the center of dilation. Find the scale factor of the dilation.

• 3/2

• 9

• 6

• 2/3

Determine the scale factor of ΔXYZ to ΔKLM.

• 3

• 8

• 1/3

• 15

The two polygons are similar. Find x.

• 6

• 12

• 2

• 3

Are the polygons similar? if so, what is the similarity statement?

• Yes, ABC ~ TRS

• Yes, ABC ~ STR

• Yes, ABC ~ RST

• No.

The two rectangles are similar. Which is the correct proportion for corresponding parts?

• 
• 
• 
• 

Triangle RST with vertices R(4,1), S(-3, 7), and T(5, -2) is reflected by R_x-axis. Find the coordinates of the vertices of its image.

• R'(1, 4), S'(7, -3), and T'(-2, 5)

• R'(-1, 4), S'(-7, -3), and T'(2, 5)

• R'(4, -1), S'(-3, -7), and T'(5, 2)

• R'(-4, -1), S'(3, -7), and T'(-5, 2)