# Answer to Question #17215 in Geometry for alyssa

Question #17215

whats the sum of the measures of the exterior angle of an octogan?

Expert's answer

interior sum =pi ( n-2)

n=8

pi*6

exterior = pi - inetrior

sum

exterior=n*pi-sum interior

sum exterior= 8*pi-6*pi=2pi

n=8

pi*6

exterior = pi - inetrior

sum

exterior=n*pi-sum interior

sum exterior= 8*pi-6*pi=2pi

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