3. What is the sum of the exterior angles of an octagon?
A. 360°
B. 75°
C. 90°
D.120°
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3. What is the sum of the exterior angles of an octagon?
A. 360°
B. 75°
C. 90°
D.120°
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Answer:
A. 360 °
Step-by-step explanation:
A rule of polygons is that the sum of the exterior angles always equals 360 degrees, but lets prove this for a regular octagon (8-sides). First we must figure out what each of the interior angles equal. To do this we use the formula: ((n-2)*180)/n where n is the number of sides of the polygon.
Answer:
A. 360 degrees
Step-by-step explanation:
45×8=360
The exterior angle of octagon is 45
So, 45×8 is equals to 360