Create a circle and connect segments from the center to the edge of the circle. What do you notice about all these segments?
In your own words, define what a circle is (without using equations!)
Draw a circle centered at the origin with a radius 3.
What's an equation that applies to every point [math]P=\left(x,y\right)[/math] on the above circle? [br][br]Hint: think back to [i]finding the distance between a point and the origin.[/i]