Sum number 13's answer please .
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Formula,
Sum of angles =(2n-4)*90
1260=(2n-4)*90
1260/90= 2n-4
14=2n-4
14+4=2n
18=2n
18/2=n
9=n
Then the polygon has 9 sides,
I hope this will help
Sum of angles =(2n-4)*90
1260=(2n-4)*90
1260/90= 2n-4
14=2n-4
14+4=2n
18=2n
18/2=n
9=n
Then the polygon has 9 sides,
I hope this will help
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