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Mathematics 24 Online
OpenStudy (annalee607):

Assume that lines that appear to be tangent are tangent . O is the center of the circle. Find the value of X. Figures are not drawn to scale.

OpenStudy (annalee607):

OpenStudy (annalee607):

M<O=111 degrees

hartnn (hartnn):

the tangents drawn to the circle are at right angles, 90 degrees with the radius.

OpenStudy (annalee607):

QWould I subtract or add?

hartnn (hartnn):

Now you have a quadrilateral with 3 known angles. Use the fact that sum of all interior angles of a quadrilateral add upto 360 degrees.

hartnn (hartnn):

|dw:1463251795138:dw|

OpenStudy (annalee607):

159

hartnn (hartnn):

|dw:1463251811530:dw|

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