Which of the following describes the set of points (x,y)(x, y)(x,y) in a circle of radius r=4r=4r=4?
x2+y2<16x^2 + y^2 < 16x2+y2<16
x2+y2>16x^2 + y^2 > 16x2+y2>16
x2+y2≤16x^2 + y^2 \le 16x2+y2≤16
x2+y2=16x^2 + y^2 = 16x2+y2=16