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Total of exterior angles of a plane figure is always 360 degrees so 360/20 = 18 degrees. Alternatively interior angles of n sided figure always total (2n -4) right angles. In this case n = 20 so total interior angles = 36 right angles ie 3240 degrees and each angle = 3240/20 ie 162 degrees. Subtracting this from 180 gives 18 degrees. QED
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What is the exterior angle of a 30 sided polygon?
Providing that it's a regular polygon then each exterior angle will measure 12 degrees.
What will be the measure of an exterior angle of a regular 18 sided polygon?
56
What is the measure of the exterior angle of a regular 9 side polygon?
400 exterior angle = 360/9 = 400
Find the measure of an interior angle and an exterior angle of a regular polygon with 30 sides?
999999
What is the measure of an exterior angle on a regular polygon with 6 sides?
60 degrees
What is the largest exterior angle that any regular polygon can have?
The largest exterior angle measure is 120o. It is the exterior measure of an equilateral triangle (which is a regular polygon).
What is the formula on how to get the measure of the exterior angle of the regular polygon?
360/number of sides = exterior angle
What is the exterior angle of a 30 sided polygon?
Providing that it's a regular polygon then each exterior angle will measure 12 degrees.
What is the exterior angle of a regular 8 sided polygon?
The measure of 1 exterior angle of a regular 8-sided polygon is equivalent to 45 degrees. Hope I helped! :)
What is the measure of each exterior angle of a 30-gon?
Providing that it is a regular polygon then each exterior angle will measure 12 degrees
How many sides does a regular polygon have with an exterior angle measure of 1?
A regular polygon will have 360 sides with exterior angles of 181 degrees.
What will be the measure of an exterior angle of a regular 18 sided polygon?
56
What is the measure of an exterior angle of a regular polygon?
360/number of sides
What is the measure of an exterior angle of a regular fifteen sided polygon?
73.2
How can you get the measure of an interior angle if you have the measure of the exterior angle of a regular polygon?
It is: 180-exterior angle = interior angle because there are 180 degrees on a straight line
What is the measure of the exterior angle of a regular 9 side polygon?
400 exterior angle = 360/9 = 400
What is the formula for finding the measure of an exterior angle in a regular polygon?
360/number of sides = each exterior angle
