The sum of just one item is the same as the item!
Exterior
A regular octagon. Since the exterior angle is 45 degrees and the sum of all exterior angles of any polygon is 360 degrees, then 45⁰n = 360⁰ n = 8
45 I guess
Any shape can have an exterior angle of 45 degrees. If you are talking about exterior angle sum, it is always 360 degrees for any polygon. If you are talking about a regular polygon (equal exterior angles), it would be 360/45=8 sides. Therefore, a regular octagon has exterior angles of 45 degrees.
You have two angles. Their sum is 45 degrees. If you had one more angle, then you would have three angles. Their sum would be more than 45 degrees.
If the question is: If the exterior angle of a regular polygon is 45 degrees, how many sides does the polygon have? then the answer is:the sum of the exterior angles of any convex polygon is 360so 360/45 = 8
45 degrees
Sum of exterior angles: 360 degrees Sum of interior angles: 1080 degrees Each exterior angle: 360/8 = 45 degrees Each interior angle: 1080/8 = 135 degrees
Interior angle = 135 So exterior angle = 180 - 135 = 45 Sum of exterior angles is 360 so number of exterior angles = 360/45 = 8.
To find the exterior angle of any polygon, you can use the formula: 360 degrees divided by the number of sides. For an 8-sided polygon (octagon), the exterior angle would be 360 degrees divided by 8, which equals 45 degrees. This means each exterior angle of an octagon measures 45 degrees.
The exterior angle of a general octagon is any angle less than 180 degrees. The sum of the exterior angles of a polygon is 360 degrees. If the octagon is regular, then each of its 8 exterior angles is equal to 360/8 = 45 degrees.
Simplest way: Exterior angle = 180 - 135, ie 45. Sum of exterior angles of ANY polygon = 360 so number of sides = 360/45 ie 8