The angles add up to 3420 degrees. In a regular 21-gon, each angle is about 162.86 degrees.
The sum of exterior angles, of any polygon - convex or concave, and whatever the number of sides - is 360 degrees or 2*pi radians.
4140Improved Answer:-Exterior angles = 360 degreesInterior angles = 4140 degrees
The exterior angles of any polygon add up to 360 degrees
false but You can find the measure of an exterior angle by using supplementary angles.
I think its this.... Find the interior. Then do 180 - the interior. That is the exterior. * * * * * The correct answer is that the sum of the exterior angles of any polygon is always 360 degrees.
The sum of exterior angles, of any polygon - convex or concave, and whatever the number of sides - is 360 degrees or 2*pi radians.
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.
The sum of the angles is 900 degrees - and the polygon does not need to be convex.
The sum of the exterior angles of any polygon is 360 degrees.
4140Improved Answer:-Exterior angles = 360 degreesInterior angles = 4140 degrees
The exterior angles of any polygon add up to 360 degrees
The exterior angles of any polygon add up to 360 degrees
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.
The exterior angles of any polygon add up to 360 degrees.
The exterior angles of any polygon always add up to 360 degrees
The sum of a regular polygons exterior angles always = 360
Number of sides is irrelevant, exterior angles always total 360o