alleryThe tangent at any point of a circle is
AParallel to the radius at the point of contact
BPerpendicular to the radius at the point of contact
CAt 45 degrees to the radius
DCoincident with the radius
Answer & Solution
Correct answer: B. Perpendicular to the radius at the point of contact
1. Tangent-radius theorem: the tangent at a point on a circle is perpendicular to the radius drawn to that point.
2. Angle between tangent and radius is 90 degrees.
3. Hence option B.
_Source: syllabus Mathematics, Ch 10 "Circles", §10.2_
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