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The interior angles of a convex polygon are in an arithmetic progression. If the smallest angle is 100 degrees and common difference is \(10\) degrees , then find the number of sides.

 Jan 20, 2022
 #1
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The number of sides is 8.

 Jan 20, 2022
 #2
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Please don't give just answers like this.  

Incomplete working is better.

 Jan 21, 2022

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