[color=#9900ff][b]Radius[/b]- Line formed with a point on the edge of the circle and the center [/color][br][color=#b6d7a8][b]Chord[/b]- Line formed inside a circle with 2 points on the edge of the circle[/color][br][color=#9fc5e8][b]Secant Line[/b]- A chord that is extended past the edge of the circle[/color][br][color=#ff00ff][b]Tangent Line[/b]- a line that is perpendicular to a radius that goes through a point on the edge of the circle[/color]