How to cut angles with miter saw

Submitted by idlebrain on Fri, 04/10/2015 - 08:06

Hi
I am trying to build this Adirondack chair using Ana's plans:

http://ext.homedepot.com/community/blog/wp-content/wpuploads/Ana-White_…

I am very beginner and first time need to make angle cuts. Please tell me how to cut this stringers as shown in page 3.

How to cut 35 degrees offsquare and 20 degrees on the other end by maintaining 31 7/8" length? Appreciate detailed instructions. Thanks much.

Thanks.