Question

In the figure above, rectangle R'S'T'Q' is a dilation of rectangle RSTQ. What is the scale factor of the dilation?

Answer 1

A.
`(1)/(5)`

Explanation:

The scale factor of dilation is the ratio of the length of any of the corresponding sides of rectangle R'S'T'Q to rectangle PQRS.

R'S' = 3

RS = 15

Thus,

Scale factor =
`(R'S')/(RS) = (3)/(15)`

Simplify

Scale factor =
`(1)/(5)`