# 9-gon

Sum of interiol angles of 9-gon is:

Correct result:

s =  1260 °

#### Solution:

$s=180\cdot \left(9-2\right)=126{0}^{\circ }$ We would be pleased if you find an error in the word problem, spelling mistakes, or inaccuracies and send it to us. Thank you! #### You need to know the following knowledge to solve this word math problem:

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