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āĻ…āύ⧁āϏāĻ¨ā§āϧāĻžāύ āĻ•āϰ⧁āύ

ABCD is a quadrilateral inscribed in the circle. 𝑂 O is the center of the circle, and ∠đĩ𝐴đļ=đ‘Ĩ∠BAC=x and ∠đĩ𝑂đļ=4đ‘Ĩ . x āĻāϰ āĻŽāĻžāύ āĻ•āϤ?

āωāĻ¤ā§āϤāϰ āϏāĻŋāϞ⧇āĻ•ā§āϟ āĻ•āϰāϞ⧇ āϏāĻ āĻŋāĻ• āĻ“ āϭ⧁āϞ āĻĻ⧇āĻ–āĻžāĻŦ⧇āĨ¤
āĻŦā§āϝāĻžāĻ–ā§āϝāĻž āĻ“ āϏāĻ āĻŋāĻ• āϏāĻŽāĻžāϧāĻžāύ
āωāĻ¤ā§āϤāϰ: none