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A tangent at point P on a circle with centre O is, relative to radius OP,
Aperpendicular to it
Bequal to it in length
Cparallel to it
Dat 45 degrees to it
Answer & Solution
Correct answer: A. perpendicular to it
The tangent touches the circle at only P, and the line perpendicular to the radius there meets the circle at no other point.
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