## anonymous one year ago 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

1. anonymous

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

2. anonymous

ok, 6 and 3x

3. anonymous

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

4. anonymous

I don't understand the next step

5. anonymous

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

6. anonymous

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

7. anonymous

ok

8. anonymous

So can you simplify that?