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Calculating Interior Angles of
a Closed-In Shape Like Octagons and Hexigons

The formula for figuring out the number of degrees
of the interior angles of figures with various numbers of equal length sides
is as follows: 180(n-2) [where n = the number of sides]

Then divide the answer by the number of sides in the shape,
to find the angle of each equal corner.

 

Think of a square having 4 - 90 degree angles = 360 total interior degrees.
Using the formula to calculate it, it would be: 180(4-2) = 360 so the formula in fact works.

**360 divided by 4 = 90 degrees per angle**
And for an octagon it's: 180(8-2) = 1080 divided by 8 = 135 degrees.

For an hexagon it's: 180(6-2) = 720 divided by 6 = 120 degrees.

And so on, and so on, etc. etc.

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