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Mathematics 7 Online
OpenStudy (anonymous):

An exterior angle of a regular polygon measures 30 degrees. What is the measure of an interior angle

OpenStudy (jdoe0001):

http://www.cimt.plymouth.ac.uk/projects/mepres/book8/bk8i15/s2eg1.gif what do you think?

OpenStudy (anonymous):

I still do not understand

OpenStudy (jdoe0001):

well ahemm|dw:1369601950431:dw|

OpenStudy (jdoe0001):

is just a flat line btw

OpenStudy (anonymous):

It's 150 degrees. A straight line has 180 degrees, so an interior angle added to its exterior angle equals 180 degrees. So 180 - 30 = 150.

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