Question 388056
<font face="Garamond" size="+2">


I just answered this same question an hour ago.  Here it is again, in case you missed it.


The radius of the circle is the distance from any one of the given points to the given center.  Use the distance formula:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ d\ =\ sqrt{(x_1\ -\ x_2)^2\ +\ (y_1\ -\ y_2)^2}]


which gives the distance between two points *[tex \Large \left(x_1,y_1\right)] and *[tex \Large \left(x_2,y_2\right)].



John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
<div style="text-align:center"><a href="http://outcampaign.org/" target="_blank"><img src="http://cdn.cloudfiles.mosso.com/c116811/scarlet_A.png" border="0" alt="The Out Campaign: Scarlet Letter of Atheism" width="143" height="122" /></a></div>
</font>