Question

Which of the following statements is not true?

Options

• A tangent to a circle intersects the circle exactly at one point.

• The point common to the circle and its tangent is called the point of contact.

• The tangent at any point of a circle is perpendicular to the radius of the circle through the point of contact. 

• A straight line can meet a circle at one point only.

Answer 1

A straight line can meet a circle at one point only.

Explanation:

A straight line can intersect a circle in 0, 1 or 2 points (0 if it misses the circle, 1 if it is a tangent, 2 if it is a secant), so it is not correct to say a straight line can meet a circle at one point only.