Question 1099385
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The tangent line and the radius to the tangent point are perpendicular.


Together with the line connecting the given point with the center, they make a right angled triangle.


Its hypotenuse is 5 cm and one leg is 4 cm.


Hence, the other leg is 3 cm (3-4-5 right angled triangle), and this leg is the radius.


<U>Answer</U>.  The radius of the circle is 3 cm.
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