Similar Triangles & Transformations

Does the image show a Dilation?

• Yes

• No

The vertices of triangle GHI are G(1, 2), H(3, 4), and I(4, 2). The triangle will be reflected across the x-axis. What will be the coordinates of the image point H′?

• (-3, 4)

• (3, -4)

• (-3, -4)

• (3, 4)

Sides in similar figures must be proportional.  

• True

• False 

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

• Congruent

• Vertical

• Similar

• Complementary 

All angles in similar figures are congruent.  

• True

• False

Find side length X.

• 30

• 25

• 15

• 40

Find missing side

• 5

• 7

• 9

• 11

State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.

• (5,3)

• (20,12)

• (-20,-12)

• (-5,-3)

How many degrees was the figure rotated?

• 90 degrees counterclockwise 

• 180 degrees

• 270 counterclockwise 

Dilate Point A by a scale factor of 1/2

• (-4,-4)

• (-1,-4)

• (-1,-1)

• (-2,-2)