Class 10 Maths NCERT Solutions Exercise 10.2: Class 10 Maths Exercise 10.2 of Chapter - Circles includes problems relating to more than one tangent to a circle from a common point outside the circle.
AO and OC are both radii of the circle. Length AO = Length OC Draw the line OB. It creates two triangles OCB and OAB. These share the length OB.