**Answered By:** Sheila Cornelisse Last Updated: Jul 17, 2017 Views: 32

**Answered By:**Sheila Cornelisse

Last Updated: Jul 17, 2017 Views: 32

HI Victoria - you could try doing some calculations using the formula for polygon angles. You can find an explanation here: http://www.algebra.com/algebra/homework/Polygons/Polygons.faq.question.463059.html.

This link takes you to a question that is somewhat similar to yours, then shows the equation you need to do to find the answer:

http://www.algebra.com/algebra/homework/Polygons/Polygons.faq.question.474448.html

The Math League website has a good general introduction to polygons here: http://www.themathleague.com/index.php?option=com_content&view=article&id=75:figuresandpol..

All the best!

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