Sahay Sir > Question Answers > NCERT Class 10 > Maths > Chapter 10 - Circles > In the figure XY and X’Y’ are two parallel tangents to a circle with centre O and and another tangent AB with point of contact C interesting XY at A and X’Y’ at B. Prove that ∠AOB=90 degree.
In the figure XY and X’Y’ are two parallel tangents to a circle with centre O and and another tangent AB with point of contact C interesting XY at A and X’Y’ at B. Prove that ∠AOB=90 degree.
