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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.
What else can I help you with?
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 of 18 sided shape?
The interior angles of an 18 sided polygon add up to 2880 degrees
Interior angle for 20 sided shape?
Exterior angle = 360/20=18 interior angle = 180 - 18 = 162 Must be regular shape
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 interior and exterior angle of a 18 sided shape?
For an 18-sided polygon (octadecagon), the formula to calculate the interior angle is ((n-2) \times 180° / n), where (n) is the number of sides. Substituting (n = 18), the interior angle is ((18-2) \times 180° / 18 = 160°). The exterior angle can be found using the formula (360° / n), which gives (360° / 18 = 20°). Therefore, each interior angle is 160° and each exterior angle is 20°.
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 sum of the interior angle measures of a 18-sided polygon?
2880 degrees
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 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''
