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Exterior angle + interior angle = 180
Hence
Interior Angle = 180 - Exterior Angle
The Exterior Angle = n(No. of sides ) / 360
Substituting
Interior Angle = 180 - (n/360)
Interior Angle = 180 - (18/360)
Interior Angle = 180 - (1/20)
Interior Angle = 179.95 degrees.
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What is the interior angle of a 18 sided polygon?
Providing that it is a regular polygon then each interior angle will measure 160 degrees
What is the measure of an angle of a regular 20-sided polygon?
The interior angles of an n-sided polygon add to (n-2)*180 degrees. So the interior angles of a 20-gon add to 18*180 = 3240 degrees. The 20-gon is regular so each angle is a 20th of this ie 3240/20 = 162 deg.
What shape has a exterior angle of 20 degrees?
A regular 18 sided polygon has 18 exterior angles each measuring 20 degrees
What is the interior angle of a twenty sided polygon?
A twenty-sided polygon is called an "icosagon" If it is a regular icosagon - all its sides and angles are equal - then it's interior angles are all 162 degrees. You can verify this by drawing a line to the centre from each angle.. There will be 20 small angles arranged in a circle around the centre. These must total 360 degrees. As 360 / 20 = 18, this leaves the other angles of each triangle to add up to 162, because the interior angles of a triangle total 180 degrees.
What is the measure of one interior angle of a regular 13 gon?
Each interior angle measures: 152o 18' 27.69''
Interior angle for 20 sided shape?
Exterior angle = 360/20=18 interior angle = 180 - 18 = 162 Must be regular shape
Interior angle of 18 sided shape?
The interior angles of an 18 sided polygon add up to 2880 degrees
What is the measure of each interior angle of a 18 sided regular polygon?
The interior angle of an octdecagon, an 18 sided regular polygon, is 160o.
What is the measure of one interior angle of a regular 18-sided polygon?
Each interior angle measures 160 degrees
What is the measure of 1 interior angle of a regular 18 sided ploygon?
Each interior angle measures 160 degrees
How many degrees of each interior angle of a 18 polygon?
Providing that it is a regular 18 sided polygon each interior angle measures 160 degrees.
What is the interior angle of a 18 sided polygon?
Providing that it is a regular polygon then each interior angle will measure 160 degrees
What is the exterior angle of an 18 sided shape?
The exterior angle of a 18 sided shape is 360/18 =20 degrees The exterior angle is always 360 divided by the numbe of sides of that polygon. =) what the hell im i doing answering this?
What is the size of an interior angle of a 20 sided regular polygon?
exterior angle = 360° ÷ 20 sides = 18° interior angle = 180° - exterior angle = 180° - 18° = 162°
What is the sum of the interior angle measures of a 18-sided polygon?
2880 degrees
What is the measure of each interior angle of a 13 sided polygon?
Providing that it's a regular polygon each interior angle is: 1520 18' 27.69''
Each interior angle on a polygon is 160 how many sides are there?
It wil be a regular 18 sided polgon
