Find x pls it's urgent

1.	Find x pls it's urgent
Answer» <html><body><p><strong><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a>:</strong></p><p>in triangle COA</p><p><a href="https://interviewquestions.tuteehub.com/tag/side-1206832" style="font-weight:bold;" target="_blank" title="Click to know more about SIDE">SIDE</a> OC = SIDE OA - > ( <a href="https://interviewquestions.tuteehub.com/tag/radii-1175952" style="font-weight:bold;" target="_blank" title="Click to know more about RADII">RADII</a> OF SAME CIRCLE</p><p>therefore by isosceles triangle theorem</p><p>angle OCA = angle OAC. ( 1 )</p><p></p><p>ANGLE AOB IS EXTERIOR ANGLE OF TRIANGLE AOC</p><p></p><p>THEREFORE BY THEOREM OF REMOTE INTERIOR ANGLE </p><p>angle AOB = angle OAC + angle OCA</p><p>80⁰ = angle OAC + angle OAC -> [ from ( 1 ) ]</p><p>80⁰ = <a href="https://interviewquestions.tuteehub.com/tag/x-746616" style="font-weight:bold;" target="_blank" title="Click to know more about X">X</a> + x</p><p>2 x = 80⁰</p><p>x = 80 / 2</p><p>x = 40⁰</p></body></html>

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