SOLUTION: what is the sum of the exterior angles of a octogon

Algebra.Com
Question 945903: what is the sum of the exterior angles of a octogon
Found 2 solutions by MathLover1, richard1234:
Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

Solution:
1) Find the measure of angle
2) From that, find the measure of one angle
3) Multiply that by
--------------------------------------...
1.
Find the measure of one interior angle
By memorization, the formula for the measure of an interior angle in a regular polygon of sides is

In an octagon, , so the formula is


º <-- the measure of each angle
2.
Find the measure of one angle
Interior and exterior angles are , so the exterior angles are each
º

3.
Finding the sum of them all:
There are eight of these angles, so their sum is
º


Answer:
The sum of the measures of the angles of a regular octagon is º.

Answer by richard1234(7193)   (Show Source): You can put this solution on YOUR website!
In general, the sum of the exterior angles of any convex polygon is .
RELATED QUESTIONS

What is the ratio of sum of interior angles of a triangle to its exterior... (answered by Fombitz)
what is the sum of the measures of the exterior angles of a pentagon (answered by scott8148)
What is the sum of the exterior angles of a convex polygon with 100 sides... (answered by Alan3354,KMST)
What is the sum of the exterior angles in a regular... (answered by Alan3354)
A convex figure has five sides. What is the sum of its exterior... (answered by solver91311)
What is the area of a rgular octogon having an apothem of 6 and a side length of 5... (answered by solver91311)
find the sum of the exterior angles of a hexagon.... (answered by stanbon)
The sum of the exterior angles of a dodecagon (answered by Alan3354)
The sum of the measures of two exterior angles of a triangle is 271. What is the measure... (answered by stanbon)