Most Important Question from Chapter - Circles, Class 10 Exercise 10.2, Q.No - 9 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 Angle AOB = 90°

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Most Important Question from
Chapter - Circles, Class 10
Exercise 10.2, Q.No - 9

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

Angle AOB = 90°

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