Question

A tangent to a circle is a line which touches the circle at one and only one point.

(a) True

(b) False

The question was posed to me during an internship interview.

Query is from Drawing Tangents and Normals for Different Conditions of Circle in portion Geometrical Construction of Engineering Drawing

Answer 1

Right answer is (a) True

To elaborate: A tangent to a circle is a line which touches the circle at one and only one point. The line joining the centre of the circle and that one point whose length is equal to the radius is perpendicular to the tangent.