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Mathematics 13 Online
OpenStudy (anonymous):

In the circle below with O as center, angle AOB is a right angle. If measure of angle 1 = measure of angle 2, find measure of angle x. (Note A, B, and C lie on the circle)

OpenStudy (anonymous):

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OpenStudy (anonymous):

AOB is 90 degrees,easy to see angle1=45. since AO=CO, x=0.5(180-45)

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