Question

How many tangents can be drawn from
(i) a point which lies on a circle
(ii) a point which lies outside the circle
[1 MARK]

Answer 1

Concept : 0.5 Mark
Application : 0.5 Mark

(i) If a point lies on the circle, only one tangent can be drawn from this point and it is perpendicular to the radius of the circle.

(ii) If a point lies outside the circle, two tangents can be drawn from this point and they are equal in length.