The diameter of one circle is represented by 12x. The diameter of another circle is represented by 6x square y. What is the radii of the two circles.
A.2 xsquare y
B. 2x:y
C. x:2y
D. 2:xy

Question

The diameter of one circle is represented by 12x. The diameter of another circle is represented by 6x square y. What is the radii of the two circles.
A.2 xsquare y
B. 2x:y
C. x:2y
D. 2:xy

anonymous · Answer

The radius is half of the diameter. So the first step is to halve the diameters of both circles.

anonymous · Answer

ok, 6 and 3x

anonymous · Answer

Close. It would be $6x$ and $3x\sqrt{y}$

anonymous · Answer

I don't understand the next step

anonymous · Answer

I am thinking my answer should be B. 2x;y for the ratio

anonymous · Answer

Well it seems that they want you to simplify. It would look like this $$\large \frac{6x}{3x\sqrt{3}}$$

anonymous · Answer

ok

anonymous · Answer

So can you simplify that?