<span>Each Interior Angle = <span>(<span>(Number of Sides -2) • 180 degrees<span>)<span> ÷ (Number of Sides)
Solving for number of sides
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<span>Each Interior Angle / 180 = <span>(N -2) <span>/ (N)
144 / 180 = (n-2) / n
144 * n = 180n -360
360 = 36 n
n = 10 the number of sides
Source:
http://www.1728.org/polygon.htm
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Answer:
B
Step-by-step explanation:
1/3
 
        
                    
             
        
        
        
Your answer should be C! Hope that helps
        
             
        
        
        
Answer:
10
Step-by-step explanation:
 
        
                    
             
        
        
        
Let s denote the number of pages in each issue of the sports magazine.
Let t denote the number of pages in each issue of the technology magazine.
Given that a sports magazine prints 12 issues per year and a technology magazine prints 10 issues per year.The total number of pages in all the issues of the sports magazine for one year is 32 more than the total number of pages in all the issues of the technology magazine for one year.
This can be written in equation as,

Since, it is given that, "Each issue of the sports magazine has 18 fewer pages than each issue of the technology magazine".
This can be written in equation as,

Thus, the set of equations that represent the given data is 
 and
 and 
Hence, Option A is the correct answer.