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Remember the equation.
Exterior Angle = 360/n (No. of sides)
Hence
Ext. Ang. = 360 / 18
Ext. Ang. = 20 degrees.
Hence the corresponding Interior Angle will = 180 - Exterior Angle.
Int. Ang. = 180 - 20 = 160 degrees.
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What will be the measure of an exterior angle of a regular 18 sided polygon?
56
What is the exterior angle of a regular 18 sided polygon?
20 degrees. The exterior angles always add up to 360 degrees.
Each exterior angle of a regular polygon measures 20 degrees how many sides does the polygon have?
The sum of the exterior angles of any polygon is 360 degrees. If each angle is 20 degrees, there must be 360/20 = 18 such angles. 18 angles means 18 sides so it is an 18-sided polygon.
What are the exterior angles on a 20 sided polygon?
The sum of the exterior angles of any polygon and the extension of its adjacent side is 360 degrees.If the 20 sided polygon is regular, then each angle is equal so that each one is 360/20 = 18 degrees.
What are the interior and exterior angles of a regular 18 sided polygon?
The measure of an interior angle in degrees of a regular polygon of n sides is given by the formula: 180 x (n-2) / nSubstituting with n=18, then the answer is that the interior angle = 160The measure of an exterior angle in degrees of a regular polygon of n sides is given by the formula: 360/nSubstituting with n= 18, then the answer is that the exterior angle = 20
