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The angles add up to 3420 degrees. In a regular 21-gon, each angle is about 162.86 degrees.
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∙ 13y ago
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Find the sum of the measures of the exterior angles of a convex 21-gon?
The sum of exterior angles, of any polygon - convex or concave, and whatever the number of sides - is 360 degrees or 2*pi radians.
Find the sum of the measure of the exterior angles of a 25 gon?
4140Improved Answer:-Exterior angles = 360 degreesInterior angles = 4140 degrees
How do you find the measure of exterior angles on a polygon?
The exterior angles of any polygon add up to 360 degrees
You are shown part of a convex n-gon The pattern of congruent angles continues around the polygon Use the Polygon Exterior Angles theorem to find the value of n?
Find the two varying exterior angles. For example, if they are alternating 120 degrees and 150 degrees, the external angles must be 60 degrees and 30 degrees. Since the sum of external angles for every polygon is 360, you can add 30 and 60 (the two varying external angles) = 90 degrees, then divide 360 by 90 and multiply by 2.
Can a exterior angle be found through the use of complementary angles?
false but You can find the measure of an exterior angle by using supplementary angles.
Find the sum of the measures of the exterior angles of a convex 21-gon?
The sum of exterior angles, of any polygon - convex or concave, and whatever the number of sides - is 360 degrees or 2*pi radians.
How do you find the sum of all the angle in a convex polygon?
If the polygon (convex or concave) has n sides, then the sum of its interior angles is 180*(n-2) degrees. The sum of its exterior angles is 360 degrees - irrespective of the number of sides.
Find the sum of the measures of the angles in a convex heptagon?
The sum of the angles is 900 degrees - and the polygon does not need to be convex.
What is the formula to find the exterior angles?
The sum of the exterior angles of any polygon is 360 degrees.
Find the sum of the measure of the exterior angles of a 25 gon?
4140Improved Answer:-Exterior angles = 360 degreesInterior angles = 4140 degrees
How do you find the measure of exterior angles on a polygon?
The exterior angles of any polygon add up to 360 degrees
How do you find the sum of the measures of the angles of a quadrilateral?
I'm not sure if you mean interior or exterior angles, so I'll give you an answer for both.For interior angles:The sum of the measures of the *interior* angles of a quadrilateral is always 360 degrees. To understand why this is true, recall that the sum of the interior angles of a triangle is 180 degrees. Now, in any quadrilateral, we can draw a diagonal, splitting it into two triangles.So, the sum of the interior angles of the quadrilateral will be the sum of all of the interior angles of the two triangles, in other words, 2x180.In general, an n-gon can be divided into n-2 triangles, so the sum of the interior angles of an n-gon is 180x(n - 2) = 180xn - 360For exterior angles:The sum of the exterior angles of any closed, convex figure will be 360 degrees. So, if the quadrilateral is convex (isn't bent inwards) the sum of the exterior angles will be 360 as well.
How can you find the sum of the exterior angles in any polygon?
The exterior angles of any polygon add up to 360 degrees
Describe how you can find the sum of the measures of the exterior angles of a polygon?
The exterior angles of any polygon add up to 360 degrees.
Describe how you can find the sum of the exterior angles of a polygon?
The exterior angles of any polygon always add up to 360 degrees
Find the sum of the exterior angles of a 32-gon?
Number of sides is irrelevant, exterior angles always total 360o
Can a exterior angle be found through the use of complementary angles?
false but You can find the measure of an exterior angle by using supplementary angles.
