SOLUTION: A decagon has angle that measures 170°,120°,160°,135°,160°,130°,160°,120°,135°,and s. What is s?

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Question 1071653: A decagon has angle that measures 170°,120°,160°,135°,160°,130°,160°,120°,135°,and s. What is s?
Answer by Edwin McCravy(20065)   (Show Source): You can put this solution on YOUR website!
1. Calculate (n-2)×180° substituting n=10.

2. Add the 9 known angles.

3. Subtract what you got for step 2 from what you got for step 1.

Edwin
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