## Calcmathlete 2 years ago Two circles have radii 5 and 13, and a common external tangent segment of length 12. What is the distance between their centers? How would you do these types of problems by the way?

1. Callisto

|dw:1343701206429:dw| Do I get the question right?

2. Calcmathlete

Yes. I believe so.

3. Calcmathlete

Oh. I see what to do now...

4. Calcmathlete

Is it $$4\sqrt{13}$$?

5. Callisto

Yes :|

6. Callisto

I think

7. Calcmathlete

lol...I remembered how I have to draw a triangle within the quadrilateral and use the new side lengths...your drawing reminded me of how it looked. THanks :)

8. Callisto

Welcome!~