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Mathematics 11 Online
OpenStudy (anonymous):

How would I find x in this problem?

OpenStudy (anonymous):

OpenStudy (phi):

the 4 angles of a quadrilateral add up to 360º the radius of a circle is perpendicular to a tangent to the circle (forms 90º angle) |dw:1339184479484:dw| the angle of an arc is the same as its central angle.

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