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Find Each Exterior Angle of a Regular Polygon Of: 9 Sides - Mathematics

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Question

Find each exterior angle of a regular polygon of: 9 sides

Sum

Solution

When n = 9
∴ Each exterior angle of a regular polygon

= `(360°)/"n"`

= `(360°)/(9)`
= 40°.

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Names of Polygons
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Chapter 18: Rectilinear Figures - Exercise 18.1

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Frank Mathematics [English] Class 9 ICSE
Chapter 18 Rectilinear Figures
Exercise 18.1 | Q 3.1
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