Question

In the image, two circles are centered at A The circle containing was dilated to produce the circle containing B’.What is the scale factor of the
dilation?

Answer 1

Answer:

The scale factor of the  dilation is 1/2

Step-by-step explanation:

we have that

The radius of the circle containing B is

$r_1=2\ units$

The radius of the circle containing B' is

$r_2=1\ units$

The dilation of circle containing B to circle containing B'  is a reduction

To find out the scale factor divide the radius of circle containing B'  by the radius of the circle containing B

so

$\frac{r_2}{r_1}= \frac{1}{2}$