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Subjects>Math>Math & Arithmetic

What is the sum of the angle measures in a 9-gon?

Anonymous

∙ 14y ago

Updated: 10/25/2022

If you draw a 9-gon and then draw from one vertex all the possible triangle to the other vertices you'll get 7 triangles. Multiply 7 times 180, the number of interior ange measure, and you'll get your answer. 1260

Wiki User

∙ 14y ago

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