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Mathematics 12 Online
OpenStudy (anonymous):

Find the measure of the missing angle below.

OpenStudy (anonymous):

OpenStudy (anonymous):

The angle should be 65 degrees. because the angles along the straight line IJ should add up to 180 degrees. Therefore on the other side of the line those angles should be 180 degrees as well. You can see that they look almost identical. Its 65 degrees by vertical angles.

OpenStudy (anonymous):

Woo! thanks!

OpenStudy (ragingsquirrel):

Yeah, this is 65 degrees.

OpenStudy (anonymous):

no worries

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