Construction of Tangents to a Circle and an Arc
Tangent to the Circle
To draw a Tangent to a Given Arc without using the Centre, through a Given Point P when P is:
(a) The middle point of the arc.
(b) At the end of the arc.
(c) Outside the arc.
(a) Given: An arc PA without centre.
Required: To draw tangent at mid- point of arc.
Steps of Construction:
(b) Given: An arc PQ without centre.
Required: To draw a tangent at end point P of the arc.
Steps of Construction:
(c) Given: An arc AB without knowing its centre.
Required: To draw a tangent from a point P where P is outside the arc.