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In the figures shown, which image represents a tangent to a circle?   
Aimg-0.jpeg
Bimg-1.jpeg
Cimg-2.jpeg
DBoth img-0.jpeg and img-1.jpeg
Answer & Solution
Correct answer: C. img-2.jpeg
A tangent touches a circle at exactly one point. In img-2.jpeg, the line touches the circle at only one point, so it is a tangent. In img-0.jpeg there is no common point, and in img-1.jpeg the line cuts the circle at two points, so it is a secant.
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