What is the relative position of the straight line and the circle, if the radius of the circle is 3 cm, and the distance

What is the relative position of the straight line and the circle, if the radius of the circle is 3 cm, and the distance from the center of the circle to the straight line is: a) 2 cm; b) 3 cm; c) 4 cm?

a) intersect b) touch c) have no common points.

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