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: 0.5

Explanation:

Answer 2

The scale factor of the dilation is 1/2

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

`(r_2)/(r_1)= (1)/(2)`