Question

the measurement of a exterior angle of a regular 20 sided polygon is ______​

Answer 1

Answer:

18°

Step-by-step explanation:

Sum of all exterior angles of any n sided polygons is 360°

Each exterior angle = 360°/n

For a polygon with 20sides,

Each ext. angle = 360/20

= 18°

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Answer 2

Each interior angle = (n-2)180/n

=( 20-2)180/20

=18×180/20

=18×9

=162. °.

Exterior angle = 180-162 =18°answer.