1080
The internal angles of a polygon with n vertices sum to (n-2)*180 degrees. This is easy to prove given a browser that supports very basic graphics but this one is just not fit for that!Then, since an octagon has 8vertices, its interior angles sum to (8-2)*180 = 6*180 = 1080 degrees.
The interior angles of an octagon sum to 6*pi radians (1080 degrees).
The sum of the internal angles is what I think you are asking, since the externals are always 360 degrees. We use the formula 180(n-2) for the sum of the total of the angles So 180x6=1080
The 8 interior angles of an octagon add up to 1,080 degrees.
The sum of the internal angles of any regular polygon is (n - 2) x 180 degrees. Since a triacontakaihexagon has 36 sides, the sum of the internal angles of a triacontakaihexagon has a sum of internal angles of (36 - 2) x 180 = 6120 degrees.
Sum of interior angles of an octagon= 1080˚
The sum of the internal angles of a n-gon are (n-2)*180 degrees. For an octagon, n = 8 so the sum of the internal angles is (8-2)*180 = 6*180 = 1080 degrees. If the octagon is regular, all eight of its internal angles are equal. So each of them equals 1080/8 = 135 degrees.
the sum of the angles is 1080
the sum of the angle in a octagon is 1080
Sum of angles in a regular polygon = (#sides - 2) * 180. Sum of Octagon angles = (8-2) * 180 = 1080
It depends on whether the question concerns internal angles, external angles, lengths of sides, lengths of diagonals, etc.
The sum of the measures of the exterior angles of an octagon (and any polygon) is 360o.
The sum of the internal angles of a polygon with n sides is 2n-4 right angles, a good formula to remember. For an octagon that is 2x8-4 times 90 degrees or 1080 degrees.
Individual angles in an octagon can have any measure - anything between 0 and 360 degrees. Only the sum of the angles has to total a certain amount (in the case of the octagon, 6 x 180 degrees). A regular octagon has internal angles of 135 degrees and external angles of 45 degrees.
1080°
An octagon has 8 sides and 8 angles. The sum of the interior angles of an octagon is 1080 degrees.
1080°