Interior angle measure of a 18-gon = [180⁰(18 - 2)]/18 = 10⁰(16) = 160⁰.
Exterior angle measure = 180⁰ - 160⁰ = 20⁰.
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Interior angle 177.12 degrees Exterior angle 2.88 degrees
Exterior angle 40 degrees Interior angle 140 degrees
It depends on a few factors: if the angle is interior, if the angle is exterior, and if the hexagon is a regular hexagon or not. Each interior angle of a regular hexagon is 120o. Each exterior angle of a regular hexagon is 60o.
Each interior angle is 156 degreesEach exterior angle is 24 degrees
180-interior angle = exterior angle If it's a regular polygon then: 360/number of sides = exterior angle