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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 angles of a twenty sided polygon?

Use the formula below to calculate the sum of the interior angles of any polygon with n-number of sides: n * (180o) - 360o or (n-2) * 180o And to find the measurement of each interior angle divide this number by the number of sides of the polygon. So for a 20-sided polygon, the sum of the interior angles would be: 20*180o - 3600 = 3240o or (20-2) * 180o = 3240o And each interior angle would measure 3240o/20 or 162o == ==


What is the names of shapes with 13 to 20 sides?

Shapes with 13 to 20 sides are known as polygons. Specifically, a 13-sided polygon is called a tridecagon, a 14-sided polygon is called a tetrakaidecagon, a 15-sided polygon is called a pentadecagon, a 16-sided polygon is called a hexadecagon, a 17-sided polygon is called a heptadecagon, an 18-sided polygon is called an octadecagon, a 19-sided polygon is called an enneadecagon, and a 20-sided polygon is called an icosagon.


Find the number of sides a regular polygon must have to meet each condition each exterior angle measure is one eigth the measure of each interior angle?

An exterior angle of a regular polygon and its corresponding interior angle = 180° If an exterior angle is 1/8 of the interior angle (A) then A + A/8 = 180 : 9A = 1440 : A = 160 Each exterior angle is thus 180 -160 = 20° The number of sides = 360 ÷ exterior angle = 360 ÷ 20 = 18


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?

Related Questions

What is the sum of the interior angle measures of a 20-sided polygon?

3240


What is sum of the interior angle measures of a 20 sided polygon?

3240


What is the interior angle of a regular 23 sided polygon?

164o 20' 52.17''


What are the interior angles of a 20 sided polygon?

If the 20-sided polygon is a regular polygon, then:The sum of all 20 angles = (20 - 2)180⁰ = 18(180⁰) = 3240⁰Each angle measure = 3240⁰/20 = 162⁰


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 total interior angle of a regular polygon if 20 triangles can be drawn inside the polygon?

20 triangles will fit into a 22 sided polygon whose interior angles add up to 3600 degrees


What is the sum of the interior angle measured by a 20-sided polygon?

162o. Method 1: Sum of interior angles of n-sided polygon = (2n - 4) right angles. In this case n = 20 so total of interior angles is 36 x 90o. Assuming polygon is regular then each interior angle is (36 x 90) divided by 20 = 3240/20 = 162. Method 2: Exterior angles of regular n-sided polygon = 360/n which in this case = 360/20 =18. Straight line is 180o so interior angle = (180 - exterior angle) = 180 - 18 = 162.


What is the sum of the interior angles of a twenty sided polygon?

Use the formula below to calculate the sum of the interior angles of any polygon with n-number of sides: n * (180o) - 360o or (n-2) * 180o And to find the measurement of each interior angle divide this number by the number of sides of the polygon. So for a 20-sided polygon, the sum of the interior angles would be: 20*180o - 3600 = 3240o or (20-2) * 180o = 3240o And each interior angle would measure 3240o/20 or 162o == ==


What is the measure of each interior angle of a twenty side polygon?

Interior angle of any n-sided polygon = (2n - 4) x 90/n degrees in this case n = 20 so you have 36 x 90/20 = 162o


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 Is the sum of the angles of an 20 sided polygon?

The interior angles of a 20 sided polygon add up to 3240 degrees


If the exterior angle of a regular polygon is 20 what is the interior angle of this polygon?

160