26 Jan
2013
26 Jan
'13
8:54 a.m.
Hello David, do we need L and R ?! Best, É. Envoyé d'un aPhone Le 26 janv. 2013 à 16:30, "davidwwilson@comcast.net" <davidwwilson@comcast.net> a écrit :
This was a problem posed to me by a friend:
Let circle C have center O.
Let point P satisfy OP = 4.
Draw tangent line L to C at point Q. Place point R on L with QR = 12.
Let segment PQ cut C at point S between P and Q, so that PS = 4 and QS = 8.
What is the radius of C?
I give up on this one.
An algebraic solution would be nice, a geometric one better. _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun