Similar Figures and Transformations

Reflect over x-axis. Which point would be at (3, -6)

• A'

• B'

• C'

• H'

Write a rule for the translation.

•  (x -1, y  + 2)

•  (x -2, y  + 1)

•  (x +2, y  - 1)

• (x +1, y  -  2)

Reflect the point (-1, 2) over the y-axis.

• (-1, -2)

• (1, 2)

• (1, -2)

• (1, 4)

A transformation is applied to a figure to create a new figure. Which transformation does not preserve congruence?

• A reflection across the x-axis

• A translation 7 units down

• A dilation by a scale factor of 5

• All transformations preserve congruency

The two figures are similar. Find the ratios (red to blue) of the perimeters and of the areas. 

• Perimeter: 11/6
  Area: 36/121

• Perimeter: 11/6
  Area: 121/36

• Perimeter: 4/11
  Area: 144/25

• Perimeter: 4/11
  Area: 64/16

The two ratios are similar. Find the ratios (red to blue) of the perimeters and of the areas. 

• Perimeter: 4/6 
  Area: 25/64

• Perimeter: 4/16
  Area: 8/16

• Perimeter: 5/8
  Area: 25/64

• Perimeter: 14/9
  Area: 121/64
  Area:

The ratio of the figures is 8:5. Find the missing measure. 

• x = 25.6

• x = 25

• x = 43

• x = 23

The figures are similar. Find x. 

• 18.5

• 30.5

• 20.5

• 16.5

Translate the points 3 units right and 6 units down. 
S (4, -6)
T (-6, 10)
U (-4, -8)

• S' (-7, -12)
  T' (-3, -4)
  U' (5, 10)

• S' (7, -12)
  T' (3, 4)
  U' (1, 14)

• S' (7, 12)
  T' (3, 4)
  U' (1, 14)

• S' (7, -12)
  T' (-3, 4)
  U' (-1, -14)

Rotate the coordinates 270° counterclockwise.
A (-5,-5)
B (-4, -2)
C ( 0,1)
D (4, 1)

• A' (5,5)
  B' (2, 4)
  C' (0, -1)
  D' (4, -1)

• A' (-5,5)
  B' (-2, 4)
  C' (1,0)
  D'(1,-4)

• A'(5, -5)
  B'(-2, -4)
  C' (-1, -0)
  D' (4, 1)

• A' (5, 5)
  B' (4, 2)
  C'(0, -1)
  D' (-4, -1)