Let the tangents at the points A() and B() on the circle intersect at the point C. Then the radius of the circle, whose center is C and the line joining A and B is its tangent, is equal to:
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Let the tangents at the points A() and B() on the circle intersect at the point C. Then the radius of the circle, whose center is C and the line joining A and B is its tangent, is equal to:
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