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Geometry 8 Online
OpenStudy (anonymous):

Please help!? What is the value of x in the regular polygon below? 1. 40 2. 120 3. 60 4. 150

OpenStudy (anonymous):

OpenStudy (anonymous):

It's 40 because if you draw a line (6 of them) from the center to each vertex, you have 6 equilateral triangles, all of which are 60 degree angles. "3x" is 60 + 60 or 120, so x = 40.

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