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The question can be answered only if the 20-gon is regular - ie all its angles are the same. IF that is the case, then:
The sum of the exterior angles of any polygon is 360 degrees. Since there are 20 exterior angles, each of them must be 360/20 = 18 degrees.
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What is the interior angle of a 45 sided polygon?
Any value between 0 and 360 degrees. There are no constraints on the size of a single angle in a polygon.
What is a 7-sided polygon with an interior right angle?
The equation for the size of an interior angle of an n-sided regular polygon is (n-2)180/n. When n=7, the interior angle of a regular sided shape would be 5x180/7 or approximately 128.57. The polygon in the question has an interior right angle (90 degree angle) and thus cannot be a regular shape. A 7 sided shape is called a heptagon. Thus, the shape described in the question is an irregular heptagon.
Calculate number of sides of a regular polygon has if an interior angle is five times the size of an exterior angle?
Suppose the interior angle is x degrees. Then the exterior angle is 180 - x degrees. x = 5*(180-x) = 900 - 5x So 6x = 900 so that x = 150 degrees. So exterior angle = 30 degrees. If the polygon has n sides (and n angles) the sum of its exterior angles is 30*n But the exterior angles of a polygon add to 360 degrees So 30*n = 360 so that n = 12. ANSWER: 12 sides.
What is the size of an interior angle on a regular 15-sided shape?
156 degrees Sum of interior angles of a polygon=180(n-2), where n is the number of sides. To find one interior angle's measure, divide by the total number of angles, which is also the total number of sides.
What is the size of each exterior angle of a regular 17-gon?
It is: 360/17 = 210 10' 35.29''
What is the size of each exterior angle of a 9 sided polygon?
360 / 9 = 40
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 size of each exterior angle of a regular twenty sided polygon?
You simply do 360/20=18 so the size of each interior angle is 18 degrees.
What is each angle size a 36 sided polygon?
Providing that it is a regular 36-agon then each exterior angle is 10 degrees and each interior angle is 170 degrees
What is the size of each interior angle of a 12 sided polygon?
If it is a regular 12 sided polygon then each interior angle is 150 degrees.
What are the Size of exterior angles of a 15 sided polygon?
The exterior angles of any polygon add up to 360. 360/15 = 24
What is the size of each angle of a 26 sided regular polygon?
Each exterior angle is 360/26 = 13.846 degrees approx. So each interior angle = 180-13.846 = 166.154 degrees (approx).
What is the size of all the exterior angles of a regular 12 sided polygon?
30 degrees
How do you find how many sides of a polygon has with the measure of an exterior angle?
The sum total of all exterior angles of any polygon is 360 degrees. So if you're given thevalue of one exterior angle AND THE POLYGON IS REGULAR(all exterior angles are thesame size), all you have to do is divide the size of one angle into 360, and the quotientis the number of sides.
What is the size of an exterior angle if the interior angle of a regular polygon is 170?
180-170 = 10 degrees and the polygon will have 36 sides
What is the size of each interior angle for a 11 sided polygon?
If its a regular polygon then its 147 degrees.
Is it true that as the no. of sides of polygon increases each interior angle and exterior angle also increase?
No because each interior angle increases in size whereas each exterior angle decreases in size.
