# Math Help - Finding Chords secants and tangents...

1. ## Finding Chords secants and tangents...

Can someone help me?

A circle can be drawn through points x, y, and z. What is the radius of the circle if you know YW=6. XW=8. And WZ=12...

Also with that....how far is the center of the circle from the point W?

Thanks

2. Originally Posted by zachcumer
Can someone help me?

A circle can be drawn through points x, y, and z. What is the radius of the circle if you know YW=6. XW=8. And WZ=12...

Also with that....how far is the center of the circle from the point W?
I need some additional information: Where is point W? Outside the circle, on the circle line, inside the circle?

3. look at number 24..thats where I got my question..

thanks

4. does that help anyone?

5. anyone?

6. Originally Posted by zachcumer
look at number 24..thats where I got my question..

thanks

EDIT: Sorry, this is the correct link: http://www.mathhelpforum.com/math-he...703-post2.html

7. what about the second part of the question...

8. Originally Posted by zachcumer
what about the second part of the question...
You have my sketch. Draw a third right triangle with WC (C stands for center of the circle) as the hypotenuse. You already know the legs of the right triangle. Calculate the length of the hypotenuse.

For confirmation only: $|\overline{WC}| = \sqrt{29}$

9. so thats how far W is from the center?

the square root of 29?

10. Originally Posted by zachcumer
hello?
Hi,

have a look here: http://www.mathhelpforum.com/math-he...562-post8.html