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Mathematics 16 Online
OpenStudy (anonymous):

in the circle below with center O, diameter AC and AB=BC,find the value of x+y.

OpenStudy (anonymous):

|dw:1374711754937:dw|

Directrix (directrix):

Triangle ABC is an isosceles right triangle. If two sides of a triangle are congruent, then the angles opposite them are congruent. So, we get a 45-45-90 triangle. |dw:1374712297857:dw|

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