N-gon angles

What is the sum of interior angles 8-gon? What is the internal angle of a regular convex 8-polygon?

Correct answer:

s =  1080 °
A =  135 °

Step-by-step explanation:

n=8 s=180 (n2)=180 (82)=1080
A=s/n=1080/8=135



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