Question

Tangle ABC is dilated to create triangle ABC using

point as the center of cilation
What is the scale factor of the dilation?
9
3
B

Answer 1

scale factor = 4

Explanation:

The scale factor is the ratio of OA' to OA , that is

scale factor =
`(OA')/(OA)` =
`(3+9)/(3)` =
`(12)/(3)` = 4