# Washington State University Math Club Problem Contest

The Math Club at Washington State University and the
WSU Department of Mathematics invite all high-school
students to answer our contest question. A $20 gift
certificate to a bookstore of the winner's choice
will be awarded for each of the two
most complete solutions. Mail your entry by May 1, 1999 to:

### WSU Math Club

### Department of Mathematics

### Washington State University

### Pullman, Washington 99164-3113

### Spring 1999 Contest Question

In the plane,
let C(r) be the circle of radius r centered at the origin.
Find the value of r among the real numbers between 0 and 100
such that C(r) passes through the
maximum number of points (a,b) where a and b are both integers.

This page was written by Matt Hudelson:
hudelson@theta.math.wsu.edu

This page was last modified on January 14, 1999.

The views and opinions expressed in this page are strictly those
of the page author. The contents of this page have not been
reviewed or approved by Washington State University.