WILL GIVE BRAINLIEST... HELP ASAP!!!!!!



1. Circle A with center at (3, 4) and radius 2 is similar to circle B with center at (−4, −5) and radius 3. Below is an incorrect informal argument for proving two circles are similar:


Step 1 Translate circle B to the right 9 units and up 7 units to form concentric circles.
Step 2 Dilate circle B to be congruent to circle A using scale factor of k = r sub two over r sub one equals two over three
Step 3 When an object is dilated, the dilated object is similar to the pre-image, thus the two circles are similar.


What is the first incorrect step, and how can it be fixed?

A. All steps are correct
B. Step 1, translate circle B to the right 7 units and up 9 units
C. Step 2, use scale factor of K= r^2/r^1=3/2
D. Step 3, replace dilated with translated.

An image of two concentric circles is shown with r2 = 8 and r1 = 3:

2. Image shows a pair of concentric circles. The radius of the smaller circle is r sub 1 and the radius of the second is r sub 2.


In order to prove the two circles are similar, the radius r1 was increased to make the circles congruent. What is the scale factor used in the above image?

A. k=8/3
B. K=3/8
C. K=1/5
D. K=5