Dilations Practice

1. Complete the following: a) Dilate triangle ABC by a scale factor of 2 from center of dilation C using any method; b) Dilate triangle DEF by a scale factor of 2.5 from point D.

What is the relationship between the length of CA and CA'?

CA is twice the length of CA'. They are the same length. CA' is twice the length of CA.

FE is 3 units long. What is the length of F'E' be after a dilation of 2.5?

It will be 6 units long It will be 7.5 units long It will be 2 units long

2. Dilation Practice: Complete the indicated dilations. Record the coordinate points in your notes.

How many times smaller is the area of image of triangle GHI than the original?

2 times smaller The areas are the same. 4 times smaller 16 times smaller

What is the ordered pair of the image of D?

(19, 12) (9, 14) none of these (14, 13)

What is the simplified slope of C'B'?

4/5 10/8 5/4 5/3 none of these 3/5