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Calculate the Measure of Each Angle of a Regular Polygon of 20 Sides. - Mathematics

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Question

Calculate the measure of each angle of a regular polygon of 20 sides.

Sum

Solution

Here n = 20

∴ Each interior angle of the regular polygon

= `(("n" - 2) xx 180°)/"n"`

= `((20 - 2) xx 180°)/(20)`
= 162°.

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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 15
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