Ex – 10.2 Que No. 9 Q.9). In Fig. 10.13, XY and X’Y’ are two parallel tangents to a circle with centre O and another tangent AB with point of contact C intersecting XY at A and X’Y’ at B. Prove that ∠AOB = 90°. Solution:- Next Ex – 10.2 Que No. 1 Ex – 10.2 Que No. 2 Ex – 10.2 Que No. 3 Ex – 10.2 Que No. 4 Ex – 10.2 Que No. 5 Ex – 10.2 Que No. 6 Ex – 10.2 Que No. 7 Ex – 10.2 Que No. 8 Ex – 10.2 Que No. 9 Ex – 10.2 Que No. 10 Ex – 10.2 Que No. 11 Ex – 10.2 Que No. 12 Ex – 10.2 Que No. 13
