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Unformatted text preview: back to our starting side, and the total is again 360 deg. This time cut the triangle out of the first width side, and attach it to the opposite side width. Starting with a length facing the first side width we get 135 deg  90 deg + 135 deg + 45 deg + 90 deg + 45 deg at which point you are back to the original side and your total is again 360 deg. Just to make the situation clear, if you go around a stop sign(a regular ocatagon) each of the octagon's interior angles will be 135 degbut the turns are all 45 deg turns in the sense that the change in direction is 45 deg. The change of direction angles are the ones we are adding to get 360 deg in these problems....
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 Spring '11
 Emil

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