In the given figure {\AC} is a tangent to the circle with centre {\O}. If \angle {\ADB}=55^{\circ}, find \boldsymbol{x} and \boldsymbol{y}. Give reasons for your answers.

ICSE Class X Math 2019 Solved Paper - Question 19

Question : 19 of 32

Marks: +1, -0

In the given figure

{\AC}

is a tangent to the circle with centre

{\O}

.
If

∠ {\ADB}=55^{∘}

, find

\boldsymbol{x}

and

\boldsymbol{y}

. Give reasons for your answers.

Solution:

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