Question

From an external point, K tangents can be drawn to a circle, then K is equal to

• A. $0$
• B. $2$
• C. $1$
• D. $\infty$

Answer 1

The correct option is B $2$

The equation of tangent to a circle in slope form is a quadratic equation,

so maximum number of tangents that can be drawn to a circle is two.

Hence from any external point of a circle two tangents can be drawn.