solve Q 18 no links Q 18 In given figure XY and X'Y' are two parallel tangents to a - Maths - Circles

Question

solve Q 18 no links
Q 18 In given figure 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 ∠ A O B = 90
°

Brijendra Pal · Accepted Answer

Hi,
IT is a exact link but just few notation changed:
https://www meritnation
com/ask-answer/question/rs-at-a-and-b-respectively-prove-that-angle-aob-90-deg/circles/3899107

solve Q.18 no links Q.18. In given figure 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 ∠ A O B = 90 ° .

solve Q.18 no links
Q.18. In given figure 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 $∠ A O B = 90 °$ .