Answer:
Step-by-step explanation:
The radius of a circle is independent of the location of its center, and circles are always similar. Here, therefore, the circles are similar; their shapes are exactly the same. Only the radii differ from one another. The radius of Circle A is 3 and that of Circle B is 9; thus the radii differ by a factor of 3.
No because 3^2 is 3x3 which is 9 not 6.
18/4 simplified is 9/2 simplified is 3/4.